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coleoptile
[koh-lee-op-til, kol-ee-]
noun
Botany.
(in grasses) the first leaf above the ground, forming a sheath around the stem tip.
coleoptile
/ ˌɒɪˈɒٲɪ /
noun
a protective sheath around the plumule in grasses
coleoptile
A protective sheath enclosing the shoot tip and embryonic leaves of grasses.
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Word History and Origins
Origin of coleoptile1
1865–70; < New Latin coleoptilum < Greek DZó ( n ) sheath, scabbard + íDz soft feathers, down
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Word History and Origins
Origin of coleoptile1
C19: from New Latin coleoptilum, from Greek koleon sheath + ptilon down, soft plumage
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