Penetrant
Pronunciation : Pen"e*trant
Part of Speech : a.
Etymology : [L. penetrans, p.pr. of penetrare: cf. F. p?n?trant.]
Definition : Defn: Having power to enter or pierce; penetrating; sharp; subtile; as, penetrant cold. "Penetrant and powerful arguments." Boyle.
Source : Webster's Unabridged Dictionary, 1913