protractile

from WordNet (r) 3.0 (2006)
protractile
    adj 1: able to be extended; "protractile muscle" [syn:
           {protractile}, {protractible}]
    
from The Collaborative International Dictionary of English v.0.48
Protractile \Pro*tract"ile\, a.
   Capable of being protracted, or protruded; protrusile.
   [1913 Webster]
    

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