Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A protective sheath enclosing the embryonic root of grasses.
from The Century Dictionary.
- noun In the embryo of many endogenous plants, the sheath covering the root, which bursts through it in germination.
from the GNU version of the Collaborative International Dictionary of English.
- noun A sheath in the embryo of grasses, inclosing the caulicle.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
sheath -like structure found in aplant seed that connects thecoleoptile to the primary root and acts as a protective covering enclosing theplumule andradicle .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[New Latin : Greek koleon, sheath; see kel- in Indo-European roots + Greek rhiza, root; see wrād- in Indo-European roots.]
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Examples
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The sheath which envelopes the radicle is called = coleorhiza = and that of the plumule, = pileole = or = germ-sheath =.
A Handbook of Some South Indian Grasses K. Rangachari
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