Wordnet 3.0
NOUN (1)
1.
ratio of the hypotenuse to the opposite side of a right-angled triangle;
[syn: cosecant, cosec]
WordNet (r) 3.0 (2006):
cosec
n 1: ratio of the hypotenuse to the opposite side of a right-
angled triangle [syn: cosecant, cosec]