reactive

2 definitions found

reactive - Collaborative International Dictionary of English v.0.48 :

  Reactive \Re*act"ive\ (r[-e]*[a^]kt"[i^]v), a. [Cf. F.
     r['e]actif.]
     Having power to react; tending to reaction; of the nature of
     reaction. -- Re*act"ive*ly, adv. -- Re*act"ive*ness, n.
     [1913 Webster]

reactive - WordNet (r) 2.1 (2005) :

  reactive
      adj 1: participating readily in reactions; "sodium is a reactive
             metal"; "free radicals are very reactive" [ant:
             unreactive]
      2: reacting to a stimulus; "the skin of old persons is less
         reactive than that of younger persons" [syn: reactive,
         responsive]