Emily Dickinson Lexicon

PEN'E-TRA-BLE, a. [Fr. from L. penetrabilis. See Penetrate.]

1. That may be penetrated, entered or pierced by another body. Let him try thy dart, / And pierce his only penetrable part. – Dryden.
2. Susceptible of moral or intellectual impression. I am not made of stone, / But penetrable to your kind entreaties. – Shak.