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coleorhiza

[ koh-lee-uh-rahy-zuh, kol-ee- ]
/ ˌkoʊ li əˈraɪ zə, ˌkɒl i- /
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noun, plural co·le·o·rhi·zae [koh-lee-uh-rahy-zee, kol-ee-]. /ˌkoʊ li əˈraɪ zi, ˌkɒl i-/. Botany.

the sheath that envelops the radicle in certain plants and that is penetrated by the root in germination.

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Origin of coleorhiza

1865–70; <New Latin <Greek koleó(n) sheath, scabbard + rhízaroot1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for coleorhiza

coleorhiza
/ (ˌkɒlɪəˈraɪzə) /

noun plural -zae (-ziː)

a protective sheath around the radicle in grasses

Word Origin for coleorhiza

C19: from New Latin, from Greek koleon sheath + rhiza root
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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