butyne
noun
bu·tyne
| \ ˈbyüˌtīn\
plural -s
Definition of butyne
: 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
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