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Medical Terminology Chap 1
Undergraduate Medical Terminology Chapter 1
9
Medical
Undergraduate 1
06/09/2010

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Term
Constructed Terms
Definition
Words made up of multiple word parts that are combined to form new words. Most of these word parts in medical terminology are derived from Latin or Greek.
Term
Nonconstructed Terms
Definition
Words that are not formed from individual word parts. Include eponyms, terms derived from other languages, acronyms, and abbreviations. These words must be memorized.
Term
Eponyms
Definition
Words derived from the names of people, i.e. pasteurization
Term
Prefix
Definition
A word part that is affixed to the beginning of a word that acts to expand or enhance the meaning of a word.
Term
Word Root
Definition
A word part that provides the primary meaning of the term and to which other word parts are attached. More than one word root can be present in a word.
Term
Suffix
Definition
A word part that is affixed to the end of a word. It often indicates the word's part of speech (noun, adj., etc.) or modifies the word's meaning.
Term
Combining Vowel
Definition
Used when a word root requires a connecting vowel to add a suffix that begins with a consonant or another word root when forming a term. It does not add to or alter the meaning of the word root; it helps us pronounce the term. Most times, the combining vowel is "O", but sometimes it is "I" or "E".
Term
Combining Form
Definition
The word root plus the combining vowel: cardi/o.
Term
Plural forms of greek and latin words ending in: a, is, itis, and on or um
Definition
The plural form for a adds an e: vertebra becomes vertebrae. Is becomes es: diagnosis becomes diagnoses. Itis becomes itides: gastritis becomes gastritides. On or um is dropped and an a is added: ganglion becomes ganglia and myocardium becomes myocardia.
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