Medical Dictionary
active
adj ac·tive \ˈak-tiv\
Medical Definition of ACTIVE
1
: capable of acting or reacting especially in some specific way <an active enzyme> <active nitrogen>
2
: tending to progress or to cause degeneration <active tuberculosis>
3
: exhibiting optical activity
4
: requiring the expenditure of energy <active calcium ion uptake>
5
: producing active immunity <active immunization>
—ac·tive·ly adverb
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