butyne
noun
bu·tyne
ˈbyüˌtīn
plural -s
: either of two isomeric hydrocarbons C4H6 of the acetylene series:
a
: an easily condensable gas CH≡CCH2CH3
called also 1-butyne, ethylacetylene
b
: a volatile liquid CH3C≡CCH3 of strong odor
called also 2-butyne, dimethylacetylene
Word History
Etymology
International Scientific Vocabulary but- + -yne, -ine