penetrant
Pen"e*trant, a. Etym: [L. penetrans, p.pr. of penetrare: cf. F. pénétrant.] Defn: Having power to enter or pierce; penetrating; sharp; subtile; as, penetrant cold. "Penetrant and powerful arguments." Boyle.
Pen"e*trant, a. Etym: [L. penetrans, p.pr. of penetrare: cf. F. pénétrant.] Defn: Having power to enter or pierce; penetrating; sharp; subtile; as, penetrant cold. "Penetrant and powerful arguments." Boyle.