Propinyl

Pro'pi·nyl noun [ Propine + -yl .] (Chemistry) A hydrocarbon radical regarded as an essential residue of propine and allied compounds.
Found on http://www.encyclo.co.uk/webster/P/175

Propinyl

• (n.) A hydrocarbon radical regarded as an essential residue of propine and allied compounds.
Found on http://thinkexist.com/dictionary/meaning/propinyl/
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