Wordnet 3.0
ADJECTIVE (2)
1.
admitting of penetration or passage into or through;
- Example: "a penetrable wall"- Example: "penetrable defenses"2.
capable of being penetrated;
- Example: "penetrable defenses"
The Collaborative International Dictionary of English v.0.48:
Penetrable \Pen"e*tra*ble\, a. [L. penetrabilus: cf. F.
p['e]n['e]trable.]
Capable of being penetrated, entered, or pierced. Used also
figuratively.
[1913 Webster]
And pierce his only penetrable part. --Dryden.
[1913 Webster]
I am not made of stones,
But penetrable to your kind entreats. --Shak.
[1913 Webster] -- Pen"e*tra*ble*ness, n. --
Pen"e*tra*bly, adv.
[1913 Webster]
WordNet (r) 3.0 (2006):
penetrable
adj 1: admitting of penetration or passage into or through; "a
penetrable wall"; "penetrable defenses" [ant:
impenetrable]
2: capable of being penetrated; "penetrable defenses"