Akademik

1. adjective /ˈkɔːstɪk,ˈkɒstɪk/

a) Capable of burning, corroding or destroying organic tissue

b) sharp, bitter, cutting, biting, sarcastic

Syn: acidic, biting, burning, corrosive, searing, bitchy, catty, mordacious, nasty, sharp, spiteful

2. noun /ˈkɔːstɪk,ˈkɒstɪk/

a) Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.

b) The envelope of reflected or refracted rays of light for a given surface or object.