Search Result for "reactive":
Wordnet 3.0

ADJECTIVE (2)

1. participating readily in reactions;
- Example: "sodium is a reactive metal"
- Example: "free radicals are very reactive"

2. reacting to a stimulus;
- Example: "the skin of old persons is less reactive than that of younger persons"
[syn: reactive, responsive]



The 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]