'Propyl' definitions:
Definition of 'propyl'
From: WordNet
noun
The monovalent organic group C3H7- obtained from propane [syn: propyl, propyl group, propyl radical]
Definition of 'Propyl'
From: GCIDE
- Propyl \Pro"pyl\, n. [Propionic + -yl.] (Chem.) The hypothetical radical C3H7, regarded as the essential residue of propane and related compounds. [1913 Webster]