Find the word definition

The Collaborative International Dictionary
Penetrably

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.

And pierce his only penetrable part.
--Dryden.

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.

Wiktionary
penetrably

adv. In a penetrable way.