Pronunciation: ˌ k ō -l ē - ə - ' r ī -z ə
Function: noun
Inflected Form: plural -zae \ -( ˌ )z ē \
Etymology: New Latin, from Greek koleon + New Latin -rhiza
Date: circa 1866
: the sheath investing the radicle in some monocotyledonous plants through which the roots emerge