n. Either of several isomeric univalent hydrocarbon radicals, C5H11, formally derived from pentane by the loss of a hydrogen atom.
the GNU version of the Collaborative International Dictionary of English
n. The hypothetical radical, C5H11, of pentane and certain of its derivatives. Same as amyl.
Word Usage
"I'm not even remotely familiar with chemistry... but here's what I found: Amyl acetate also pentyl ethanoate, pentyl acetate is an organic compound and an ester with the chemical formula CH3COOC5H11 and the molecular weight 130.18 g/mol."