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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 of Med Terms

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

Med terms B- med term prefixes-suffixes

Medical terminology is composed of a prefix, root word, and suffix. It is used to precisely describe the human body components, processes, illnesses, medical procedures, and pharmacology. Medical terminology B is used in the field of medicine, and clinical settings. This section deals with med terms beginning with the letter B and feature med term prefixes, roots and suffixes.

bacill/o   bacilli (bacteria)
bacteri/o   bacteria
balan/o   glans penis
bar/o   pressure; weight
bartholin/o   Bartholin glands
bary-   weight, pressure
-basia   walking
bas/o   base; opposite of acid
batho-, bathy-   deep, depth
bi-   two
bi/o   life
bil/i   bile; gall
bilirubin/o   bilirubin
-blast   embryonic; immature cell
-blastoma   immature tumor (cells)
blenn/o   mucus
blephar/o   eyelid
bol/o   cast; throw
-boulia   will
brachi/o   arm
brachy-   short
brady-   slow
brom/o   bromine-containing compound, odor
bronch/o   bronchial tube
bronchi/o   bronchial tube
bronchiol/o   bronchiole
bucc/o   cheek
bunion/o   bunion
burs/o   bursa (sac of fluid near joints)
byssin/o   cotton dust

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

  • Quick Introduction- provides an overview and introduction to medical terminology.
  • Word Building Reference- This resource strengthens your understanding of medical terminology. See how common medical terms are created using the various prefixes, suffixes, and root words.
  • Medical Terms – rules governing singular versus plural versions of medical terms are described.
  • Medical Terminology Exams- twenty new exams were created to test your knowledge of medical terminology.


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