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coleorhiza
[ koh-lee-uh-rahy-zuh, kol-ee- ]
noun
, Botany.
, plural co·le·o·rhi·zae [koh-lee-, uh, -, rahy, -zee, kol-ee-].
- the sheath that envelops the radicle in certain plants and that is penetrated by the root in germination.
coleorhiza
/ ˌkɒlɪəˈraɪzə /
noun
- a protective sheath around the radicle in grasses
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Word History and Origins
Origin of coleorhiza1
1865–70; < New Latin < Greek koleó ( n ) sheath, scabbard + rhíza root 1
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Word History and Origins
Origin of coleorhiza1
C19: from New Latin, from Greek koleon sheath + rhiza root
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Example Sentences
Germination.—In germination the coleorhiza lengthens, ruptures the pericarp, and fixes the grain to the ground by developing numerous hairs.
From Project Gutenberg
Coleorhiza, kol-ē-ō-rī′za, n. the root-sheath in endogens.
From Project Gutenberg
The sheath which envelopes the radicle is called coleorhiza and that of the plumule, pileole or germ-sheath.
From Project Gutenberg
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