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1. An impelling or restraining force; a compulsion.
2. Joint action.
3. Ecology Any of the reciprocal actions or effects, such as symbiosis, that can occur in a community.

[Middle English coaccioun, from Latin coāctiō, coāctiōn-, a collecting, from coāctus, past participle of cōgere, to collect, condense; see coagulum. Senses 2 and 3 : co- + action.]

co·ac′tive adj.
co·ac′tive·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Follet (1924) argues that coactive power is achievable through democratic governance and joint search processes allowing for the experience of positive power, and allowing people to accept the legitimacy of power where it is coactively constituted.
Character does not exist as an entity because it functions coactively within the social context.
The unexpected findings of these preliminary studies on adult runners, compared with the enhanced maximal athletic performance in previous social facilitation literature (16,42,59,61), highlight the need for further experimental research on the behavioral and psychological effects of performing submaximal training coactively with others.
This can be achieved, for example, by affirming the other person's touching of the ball and coactively rolling it on the floor for a short time.