activity
[ ak-tiv-i-tee ]
/ ækˈtɪv ɪ ti /
noun, plural ac·tiv·i·ties.
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Nearby words
activewear, active‐matrix, activin, activism, activist, activity, activize, acto, actomyosin, acton, actor
Related forms
non·ac·tiv·i·ty, noun, plural non·ac·tiv·i·ties.pre·ac·tiv·i·ty, noun, plural pre·ac·tiv·i·ties.su·per·ac·tiv·i·ty, noun, plural su·per·ac·tiv·i·ties.Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for activity
British Dictionary definitions for activity
activity
/ (ækˈtɪvɪtɪ) /
noun plural -ties
the state or quality of being active
lively action or movement
any specific deed, action, pursuit, etcrecreational activities
the number of disintegrations of a radioactive substance in a given unit of time, usually expressed in curies or disintegrations per second
- the capacity of a substance to undergo chemical change
- the effective concentration of a substance in a chemical system. The absolute activity of a substance B, λ B, is defined as exp (μ B RT) where μ B is the chemical potential
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for activity
activity
[ ăk-tĭv′ĭ-tē ]
n.
A physiological process.
The presence of neurogenic electrical energy in electroencephalography.
An ideal concentration for which the law of mass action will apply perfectly.
The intensity of a radioactive source.
The ability to take part in a chemical reaction.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.