'Penetrant' definitions:
Definition of 'Penetrant'
From: GCIDE
- Penetrant \Pen"e*trant\, a. [L. penetrans, p. pr. of penetrare: cf. F. p['e]n['e]trant.] Having power to enter or pierce; penetrating; sharp; subtile; as, penetrant cold. "Penetrant and powerful arguments." --Boyle. [1913 Webster]