from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. That can be protracted; extensible: protractile limbs and claws.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That can be protracted (as a cat's claws)
from the GNU version of the Collaborative International Dictionary of English
- adj. Capable of being protracted, or protruded; protrusile.
from The Century Dictionary and Cyclopedia
- Susceptible of being drawn forward or thrust out, as the tongue of a woodpecker; protrusile: correlated with retractile, that which is one being also the other.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. able to be extended
Sorry, no etymologies found.
If in the free (protractile) portion of the penis, that organ is to be withdrawn from its sheath until the nodule is exposed and can be incised.