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pseudo-active
beehive of activity
Alternative form of hive of activity
pro-actively
Alternative form of proactively
activity theory
A line of eclectic social science theories and research with its roots in a Soviet theory pioneered by Sergei Rubinstein in the 1930s, seeking to understand human activities as systemic and socially situated phenomena and to go beyond paradigms of reflexology and classical conditioning.
displacement activities
civic activity
an activity started by the citizens themselves; social movement
active voice
(grammar, uncountable) the form in which the subject of a verb carries out some action / (grammar, countable) a form in a particular language used to express the active voice
CH activation
(organic chemistry) Any of a wide range of techniques, often using catalysts, in which a carbon to hydrogen covalent bond of an organic compound is made to cleave in order to replace the hydrogen with a functional group.
active galaxy
(astronomy) A galaxy where a significant fraction of the energy output is not emitted by the normal components of a galaxy.
extravehicular activity
Any activity done by an astronaut outside of a spacecraft etc; a spacewalk or moonwalk.
