Wordnet 3.0
ADJECTIVE (1)
1.
capable of retraction;
capable of being drawn back;
- Example: "cats have retractile claws"
The Collaborative International Dictionary of English v.0.48:
Retractile \Re*tract"ile\ (r[-e]*tr[=a]kt"[i^]l), a. [Cf. F.
-r['e]tractile.] (Physiol.)
Capable of retraction; capable of being drawn back or up; as,
the claws of a cat are retractile.
[1913 Webster]
WordNet (r) 3.0 (2006):
retractile
adj 1: capable of retraction; capable of being drawn back; "cats
have retractile claws" [ant: nonretractable,
nonretractile]