(ת') מגיב

adj. responding to stimuli, acting in return

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Adjective
1. participating readily in reactions; "sodium is a reactive metal"; "free radicals are very reactive"
(antonym) unreactive
(similar) activated, excited
(classification) chemistry, chemical science
2. tending to react to a stimulus; "the skin of the geriatric is less reactive than that of younger persons"- Louis Tuft
(similar) sensitive

adj. reacting, reactive

v. reactivate, revive

v. reactivate, make active again, put into action again, restart