Medical Terminology For Dummies
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Adding to your vocabulary is easier if you know meaning of common prefixes, which help you understand the meaning of words. The following list contains three common prefixes and their meanings:

  • Co- means "with." Variations include col-, com-, and con-. (cofounder, commemorate, concussion)

  • De- can mean “reduce,” “remove,” and “to get off of.” (decaffeinate, decapitate, deplane)

  • In- and its variations — em-, en-, il-, im-, and ir- — can mean "not," "in," "within," "put into," and "surround." (incapable, enrage, impassioned)

About This Article

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About the book authors:

Beverley Henderson, CMT-R, HRT, has more than 40 years of experience in medical terminology and transcription as both an educator and manager. Jennifer L. Dorsey, PhD, has coauthored, revised, and ghostwritten books in the medical, business, and personal growth categories for more than 20 years.

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