Search Result for "concave lens":
Wordnet 3.0

NOUN (1)

1. a lens such that a parallel beam of light passing through it is caused to diverge or spread out;
[syn: diverging lens, concave lens]



WordNet (r) 3.0 (2006):

concave lens
    n 1: a lens such that a parallel beam of light passing through
         it is caused to diverge or spread out [syn: diverging
         lens, concave lens]