Search Result for "alkyne": 
Wordnet 3.0

NOUN (1)

1. a colorless flammable gas used chiefly in welding and in organic synthesis;
[syn: acetylene, ethyne, alkyne]



WordNet (r) 3.0 (2006):

alkyne
    n 1: a colorless flammable gas used chiefly in welding and in
         organic synthesis [syn: acetylene, ethyne, alkyne]