PENETRABLE
Pen"e*tra*ble, a. Etym: [L. penetrabilus: cf. F. pénétrable.]
Defn: Capable of being penetrated, entered, or pierced. Used also
figuratively.
And pierce his only penetrable part. Dryden.
I am not made of stones, But penetrable to your kind entreats. Shak.
— Pen"e*tra*ble*ness, n.
— Pen"e*tra*bly, adv.
PENETRAIL
Pen"e*trail, n.
Defn: Penetralia. [Obs.] Harvey.
PENETRALIA Pen`e*tra"li*a, n. pl. Etym: [L., fr. penetralis penetrating, internal. See Penetrate.]
1. The recesses, or innermost parts, of any thing or place, especially of a temple or palace.
2. Hidden things or secrets; privacy; sanctuary; as, the sacred penetralia of the home.
PENETRANCE; PENETRANCY
Pen"e*trance, Pen"e*tran*cy, n.
Defn: The quality or state of being penetrant; power of entering or piercing; penetrating power of quality; as, the penetrancy of subtile effluvia.
PENETRANT Pen"e*trant, a. Etym: [L. penetrans, p.pr. of penetrare: cf. F. pénétrant.]