You are here

Feel free to use our complete database with charts, tables and examples.

Medical terminology is composed of a prefix, root word, and suffix:
Prefix: A prefix is placed at the beginning of a word to modify or change its meaning. Pre means "before." Prefixes may also indicate a location, number, or time.
Root: central part of a word.
Suffix: The ending part of a word that modifies the meaning of the word.
Additional resources:   [Intro to med terms] [Med terms rules] [Med term reference] [Word building reference]  [Practice Exams]

Alphabetical Listing (word building)

a b c d e f g h i j k l m
n o p q r s t u v w x y z

Feel free to use our complete database with charts, tables and examples.

 

Medical Terminology Reference

Use this reference to see how common medical terms are created using the various prefixes, suffixes, and root words.

hallucinogen

Prefix:
Prefix Definition:
1st Root Word: hallucin/o
1st Root Definition: hallucination
2nd Root Word:
2nd Root Word Definition:
Suffix: -gen
Suffix Definition: substance that produces
Definition: substance that produces hallucinations

hallucinosis

Prefix:
Prefix Definition:
1st Root Word: hallucin/o
1st Root Definition: hallucination
2nd Root Word:
2nd Root Word Definition:
Suffix: -osis
Suffix Definition: condition, usually abnormal
Definition: abnormal condition characterized by hallucinations

hematemesis

Prefix:
Prefix Definition:
1st Root Word: hemat/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -emesis
Suffix Definition: the action or process of vomiting
Definition: vomiting blood

hematology

Prefix:
Prefix Definition:
1st Root Word: hemat/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -logy
Suffix Definition: study (process of)
Definition: study of blood diseases, functions…

hematoma

Prefix:
Prefix Definition:
1st Root Word: hemat/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -oma
Suffix Definition: tumor; mass; fluid collection
Definition: swelling that is filled with blood

hematopoiesis

Prefix:
Prefix Definition:
1st Root Word: hemat/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -poiesis
Suffix Definition: formation
Definition: formation of blood or blood cells

hematuria

Prefix:
Prefix Definition:
1st Root Word: hemat/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -uria
Suffix Definition: urination; condition of urine
Definition: condition of blood in the urine

hemiparesis

Prefix: hemi-
Prefix Definition: half
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -paresis
Suffix Definition: weakness
Definition: weakness; paralysis restricted to one side

hemiplegia

Prefix: hemi-
Prefix Definition: half
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -plegia
Suffix Definition: paralysis; palsy
Definition: paralysis of one side

hemispherectomy

Prefix: hemi-
Prefix Definition: half
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -ectomy
Suffix Definition: removal; excision; resection
Definition: removal; excision; resection of half the brain

hemochromatosis

Prefix:
Prefix Definition:
1st Root Word: hem/o
1st Root Definition: blood
2nd Root Word: chrom/o
2nd Root Word Definition: color
Suffix: -osis
Suffix Definition: condition, usually abnormal
Definition: abnormal blood disorder causing the body to absorb excessive
amounts of iron

hemoglobin

Prefix:
Prefix Definition:
1st Root Word:  hem/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -globin
Suffix Definition: protein
Definition: a protein of red blood cells that transports oxygen

hemolysis

Prefix:
Prefix Definition:
1st Root Word:  hem/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -lysis
Suffix Definition: breakdown; separation; destruction; loosening
Definition: breakdown; separation; destruction; loosening of red blood cells

hemophilia

Prefix:
Prefix Definition:
1st Root Word:  hem/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -philia
Suffix Definition: attraction for
Definition: abnormal blood clot disorder; attraction for blood

hemopoiesis

Prefix:
Prefix Definition:
1st Root Word:  hem/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -poiesis
Suffix Definition: formation
Definition: formation of blood cells

hemoptysis

Prefix:
Prefix Definition:
1st Root Word:  hem/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -ptysis
Suffix Definition: spitting
Definition: spitting up blood

hemorrhage

Prefix:
Prefix Definition:
1st Root Word:  hem/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -rrhage
Suffix Definition: bursting forth (of blood)
Definition: bursting forth of blood from a ruptured blood vessel

hemostasis

Prefix:
Prefix Definition:
1st Root Word:  hem/o
1st Root Definition: blood
2nd Root Word:
2nd Root Word Definition:
Suffix: -stasis
Suffix Definition: to stop; control; place
Definition: to stop; control the flow of blood

hepatic

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -ic
Suffix Definition: pertaining to
Definition: pertaining to the liver

hepatitis

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -itis
Suffix Definition: inflammation
Definition: inflammation of the liver

hepatobiliary

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -biliary
Suffix Definition: pertaining to the gallbladder and bile ducts
Definition: pertaining to the liver, gallbladder and bile ducts

hepatoblastoma

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -blastoma
Suffix Definition: immature tumor (cells)
Definition: tumor cells that originate in the liver

hepatocyte

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -cyte
Suffix Definition: cell
Definition: liver cell

hepatology

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -logy
Suffix Definition: study (process of)
Definition: study of the liver

hepatoma

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -oma
Suffix Definition: tumor; mass; fluid collection
Definition: tumor of the cells in the liver

hepatomegaly

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word:
2nd Root Word Definition:
Suffix: -megaly
Suffix Definition: enlargement
Definition: enlarged liver

hepatosplenomegaly

Prefix:
Prefix Definition:
1st Root Word: hepat/o
1st Root Definition: liver
2nd Root Word: splen/o
2nd Root Word Definition: spleen
Suffix: -megaly
Suffix Definition: enlargement
Definition: concurrent enlargement of the liver and spleen

heterogeneous

Prefix:
Prefix Definition:
1st Root Word: heter/o
1st Root Definition: other; another; different
2nd Root Word: gen/o
2nd Root Word Definition: birth; production; formation; kind
Suffix: -ous
Suffix Definition: pertaining to
Definition: originating outside the organism

histology

Prefix:
Prefix Definition:
1st Root Word: hist/o
1st Root Definition: tissue
2nd Root Word:
2nd Root Word Definition:
Suffix: -logy
Suffix Definition: study (process of)
Definition: study of tissues

homeopathy

Prefix:
Prefix Definition:
1st Root Word: home/o
1st Root Definition: sameness; unchanging; constant
2nd Root Word:
2nd Root Word Definition:
Suffix: -pathy
Suffix Definition: disease; emotion
Definition: treatment of disease using minute doses of drugs that would
otherwise produce symptoms of disease

homeostasis

Prefix:
Prefix Definition:
1st Root Word: home/o
1st Root Definition: sameness; unchanging; constant
2nd Root Word:
2nd Root Word Definition:
Suffix: -stasis
Suffix Definition: to stop; control; place
Definition: seek and maintain an equilibrium within an internal environment

humerus

Prefix:
Prefix Definition:
1st Root Word: humer/o
1st Root Definition: humerus
2nd Root Word:
2nd Root Word Definition:
Suffix: -us
Suffix Definition: structure; thing
Definition: long bone from the shoulder to the elbow of the arm

hydroadipsia

Prefix:
Prefix Definition:
1st Root Word: hydr/o
1st Root Definition: water
2nd Root Word: dips/o
2nd Root Word Definition: thirst
Suffix: -ia
Suffix Definition: condition
Definition: condition of being thirsty for water

hydrocele

Prefix:
Prefix Definition:
1st Root Word: hydr/o
1st Root Definition: water
2nd Root Word:
2nd Root Word Definition:
Suffix: -cele
Suffix Definition: hernia; swelling
Definition: accumulation of serous fluid in a body sac

hydrocephalus

Prefix:
Prefix Definition:
1st Root Word: hydr/o
1st Root Definition: water
2nd Root Word: cephal/o
2nd Root Word Definition: head
Suffix: -us
Suffix Definition: structure; thing
Definition: accumulation of fluid in the brain

hydrophobia

Prefix:
Prefix Definition:
1st Root Word: hydr/o
1st Root Definition: water
2nd Root Word:
2nd Root Word Definition:
Suffix: -phobia
Suffix Definition: fear
Definition: fear of water

hydrophobic

Prefix:
Prefix Definition:
1st Root Word: hydr/o
1st Root Definition: water
2nd Root Word: phob/o
2nd Root Word Definition: fear
Suffix: -ic
Suffix Definition: pertaining to
Definition: pertaining to the fear of water

hydrophyte

Prefix:
Prefix Definition:
1st Root Word: hydr/o
1st Root Definition: water
2nd Root Word:
2nd Root Word Definition:
Suffix: -phyte
Suffix Definition: plant
Definition: plant that only grows in or on water

hydrotherapy

Prefix:
Prefix Definition:
1st Root Word: hydr/o
1st Root Definition: water
2nd Root Word:
2nd Root Word Definition:
Suffix: -therapy
Suffix Definition: treatment
Definition: treatment for conditions using exercise in the water

hyperemesis

Prefix: hyper-
Prefix Definition: above; excessive
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -emesis
Suffix Definition: vomiting
Definition: excessive vomiting

hypergeusia

Prefix: hyper-
Prefix Definition: above; excessive
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -geusia
Suffix Definition: taste
Definition: abnormally heightened sense of taste

hyperglycemia

Prefix: hyper
Prefix Definition: above; excessive
1st Root Word: glyc/o
1st Root Definition: glucose; sugar
2nd Root Word:
2nd Root Word Definition:
Suffix: -emia
Suffix Definition: blood condition
Definition: excess of glucose in the bloodstream

hyperglycemic

Prefix: hyper
Prefix Definition: above; excessive
1st Root Word: glyc/o
1st Root Definition: glucose; sugar
2nd Root Word:
2nd Root Word Definition:
Suffix: -ic
Suffix Definition: pertaining to
Definition: pertaining to high blood sugar

hyperhidrosis

Prefix: hyper
Prefix Definition: above; excessive
1st Root Word: hidr/o
1st Root Definition: sweat
2nd Root Word:
2nd Root Word Definition:
Suffix: -osis
Suffix Definition: condition, usually abnormal
Definition: disorder marked by excessive sweating

hyperkalemia

Prefix: hyper
Prefix Definition: above; excessive
1st Root Word: kal/i
1st Root Definition: potassium
2nd Root Word:
2nd Root Word Definition:
Suffix: -emia
Suffix Definition: blood condition
Definition: potassium level in blood that’s higher than normal

hyperplasia

Prefix: hyper
Prefix Definition: above; excessive
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -plasia
Suffix Definition: development; formation
Definition: abnormal increase in volume of a tissue or organ caused by the
formation and growth of new normal cells

hypertension

Prefix: hyper
Prefix Definition: above; excessive
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -tension
Suffix Definition: pressure
Definition: abnormally high blood pressure

hyperthermia

Prefix: hyper
Prefix Definition: above; excessive
1st Root Word: therm/o
1st Root Definition: heat
2nd Root Word:
2nd Root Word Definition:
Suffix: -ia
Suffix Definition: condition
Definition: condition of having a body temperature greatly above normal

hypodermic

Prefix: hypo-
Prefix Definition: deficient; below; under; less than normal
1st Root Word: derm/o
1st Root Definition: skin
2nd Root Word:
2nd Root Word Definition:
Suffix: -ic
Suffix Definition: pertaining to
Definition: pertaining to the region immediately beneath the skin

hypogeusia

Prefix: hypo-
Prefix Definition: deficient; below; under; less than normal
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -geusia
Suffix Definition: taste
Definition: decreased sensitivity to taste

hypovolemia

Prefix: hypo-
Prefix Definition: deficient; below; under; less than normal
1st Root Word:
1st Root Definition:
2nd Root Word:
2nd Root Word Definition:
Suffix: -volemia
Suffix Definition: blood volume
Definition: decreased volume of circulating blood in the body

hysterectomy

Prefix:
Prefix Definition:
1st Root Word: hyster/o
1st Root Definition: uterus; womb
2nd Root Word:
2nd Root Word Definition:
Suffix: -ectomy
Suffix Definition: removal; excision; resection
Definition: surgical removal of all or part of the uterus

hysteroptosis

Prefix:
Prefix Definition:
1st Root Word: hyster/o
1st Root Definition: uterus; womb
2nd Root Word:
2nd Root Word Definition:
Suffix: -ptosis
Suffix Definition: droop; sag; prolapse; protrude
Definition: prolapse of the uterus

Navigation

Check out the following resources to support your learning and understanding of medical terminology:

 

H