Definition of protrusile in English:

protrusile

adjective

  • (of a limb or other body part) able to be thrust forward.

    • ‘Biologists have been fascinated with the frog's protrusile tongue for decades, but until recently the biomechanics of the tadpole's mouth was a mystery.’
    • ‘Like pangolins, aardvarks have a long, protrusile tongue and a gizzard-like stomach.’

Origin

Mid 19th century: from Latin protrus- ‘extended or thrust forward’ (from the verb protrudere), on the pattern of extrusile.

Pronunciation