activity
the state or quality of being active: There was not much activity in the stock market today. He doesn't have enough physical activity in his life.
a specific deed, action, function, or sphere of action: social activities.
work, especially in elementary grades at school, that involves direct experience by the student rather than textbook study.
energetic activity; animation; liveliness.
a use of energy or force; an active movement or operation.
normal mental or bodily power, function, or process.
Physical Chemistry. the capacity of a substance to react, corrected for the loss of reactivity due to the interaction of its constituents.
Physics.
the number of atoms of a radioactive substance that disintegrate per unit of time, usually expressed in curies.
an organizational unit or the function it performs.
Origin of activity
1Other words from activity
- 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.
Words Nearby activity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use activity in a sentence
The most recent activity had a high point of 3.6 on the Richter Scale.
26 Earthquakes Later, Fracking’s Smoking Gun Is in Texas | James Joiner | January 7, 2015 | THE DAILY BEAST“There is nothing whatsoever in the video which supports the charges—it shows no criminal activity,” Bakir said.
Sisi Is Persecuting, Prosecuting, and Publicly Shaming Egypt’s Gays | Bel Trew | December 30, 2014 | THE DAILY BEASTThe masterpiece is huge, but structurally flawed and terribly vulnerable to seismic activity.
Moreover, trucks, dust, and boomtown stress are the effects of any large-scale industrial activity.
Some of them, including Kurnosova, escaped the country as they faced a possible jail term for their opposition activity.
Other factors being equal, the amount of urea indicates the activity of metabolism.
A Manual of Clinical Diagnosis | James Campbell ToddIn disease, the amount of solids depends mainly upon the activity of metabolism and the ability of the kidneys to excrete.
A Manual of Clinical Diagnosis | James Campbell ToddNo young Cave Swallows were taken and gonads of adults were in various stages of reproductive activity.
Summer Birds From the Yucatan Peninsula | Erwin E. KlaasIt is the will directing the activity of the intellect into some particular channel and keeping it there.
Assimilative Memory | Marcus Dwight Larrowe (AKA Prof. A. Loisette)Both animal and man seemed to be dozing, but they woke into activity when the sahib approached.
The Red Year | Louis Tracy
British Dictionary definitions for activity
/ (ækˈtɪvɪtɪ) /
the state or quality of being active
lively action or movement
any specific deed, action, pursuit, etc: recreational 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
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