Origin: 1375–1425; late Middle English <
Latin penetrābilis, equivalent to
penetrā(
re) to
penetrate +
-bilis -ble Related formspen·e·tra·bil·i·ty, pen·e·tra·ble·ness, noun
pen·e·tra·bly, adverb
non·pen·e·tra·bil·i·ty, noun
non·pen·e·tra·ble, adjective
non·pen·e·tra·b·ly, adverb
EXPANDself-pen·e·tra·bil·i·ty, noun
trans·pen·e·tra·ble, adjective
un·pen·e·tra·ble, adjective
un·pen·e·tra·b·ly, adverb
COLLAPSE