coleorhiza

noun
co·le·o·rhi·za | \ˌkō-lē-ə-ˈrī-zə \
plural coleorhizae\ˌkō-lē-ə-ˈrī-(ˌ)zē \

Definition of coleorhiza 

: the sheath investing the radicle in some monocotyledonous plants through which the roots emerge

First Known Use of coleorhiza

circa 1866, in the meaning defined above

History and Etymology for coleorhiza

New Latin, from Greek koleon + New Latin -rhiza

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The first known use of coleorhiza was circa 1866

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