reaction
1Reaction — Re*ac tion (r[ e]*[a^]k sh[u^]n), n. [Cf. F. r[ e]action.] 1. Any action in resisting other action or force; counter tendency; movement in a contrary direction; reverse action. [1913 Webster] 2. (Chem.) The mutual or reciprocal action of chemical …
2RÉACTION — n. f. T. de Physique Action d’un corps sur un autre qui agit ou vient d’agir sur lui. La réaction est toujours égale à l’action. En termes de Chimie, il désigne des Modifications d’ordre chimique résultant de l’action d’un corps sur un autre. En… …
3Reaction — A reaction is usually any response caused by some other event:*Adverse drug reaction *Chemical reaction *Light reaction *Nuclear reaction *Reaction (physics), as defined by Newton s third law *Reflex reaction *Reactionary, a political tendencyThe …
4reaction — noun Date: circa 1611 1. a. the act or process or an instance of reacting b. resistance or opposition to a force, influence, or movement; especially tendency toward a former and usually outmoded political or social order or policy 2. a response… …
5RÉACTION — s. f. T. de Physiq. Action d un corps sur un autre qui agit ou vient d agir sur lui. La réaction est toujours égale à l action. Il se dit, figurément, en parlant D un parti opprimé qui se venge et agit à son tour. Il faut, dans un État,… …
6Reaction–diffusion system — Reaction–diffusion systems are mathematical models which explain how the concentration of one or more substances distributed in space changes under the influence of two processes: local chemical reactions in which the substances are transformed… …
7Reaction Engines Limited — Type Private Industry Aerospace Founded 1989 …
8Reaction wheel — A momentum/reaction wheel comprising a high accuracy Conical Earth Sensor to maintain a satellite s precise attitude A reaction wheel is a type of flywheel used primarily by spacecr …
9Reaction time — (RT) is the elapsed time between the presentation of a sensory stimulus and the subsequent behavioral response. RT is often used in experimental psychology to measure the duration of mental operations, known as mental chronometry. The behavioral… …
10Reaction time — Reaction Re*ac tion (r[ e]*[a^]k sh[u^]n), n. [Cf. F. r[ e]action.] 1. Any action in resisting other action or force; counter tendency; movement in a contrary direction; reverse action. [1913 Webster] 2. (Chem.) The mutual or reciprocal action of …
