of or designating the style of an earlier time:
a prefix occurring in loanwords from Latin meaning “backward” (retrogress); on this model, used in the formation of compound words (retrorocket).
noun (pl) -ros
short for retrorocket
denoting something associated with or revived from the past: retro dressing, retro fashion
back or backwards: retroactive
located behind: retrolental
Backward; back: retroposition.
Situated behind: retroperitoneum.
French rétro (French clipping for rétrospectif, that is, retrospective)
verb (used without object) 1. to act in opposition; react. 2. to have reference to or influence on past occurrences. verb (intransitive) 1. to act in opposition 2. to influence or have reference to past events
noun 1. action that is opposed or contrary to the preceding action. noun 1. an action contrary or reciprocal to a preceding action 2. a retrospective action, esp a law affecting events prior to its enactment
adjective 1. operative with respect to past occurrences, as a statute; retrospective: a retroactive law. 2. pertaining to a pay raise effective as of a past date. adjective 1. applying or referring to the past: retroactive legislation 2. effective or operative from a date or for a period in the past
- Retroactive inhibition
noun 1. (psychol) the tendency for the retention of learned material or skills to be impaired by subsequent learning, esp by learning of a similar kind Compare proactive inhibition