American Heritage® Dictionary of the English Language, Fourth Edition
- n. A protective sheath enclosing the shoot tip and embryonic leaves of grasses.
Century Dictionary and Cyclopedia
- n. Same as coleophyl.
- Based on Ancient Greek κολεός (koleos, "sheath") + πτίλον (ptilon, "feather"). (Wiktionary)
- From New Latin coleoptilum : Greek koleon, sheath; see kel-1 in Indo-European roots + Greek ptilon, plume; see pet- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
“(B) Effect of BL on coleoptile and root elongation in XA21 and BiP3 ox/XA21 seedlings.”
“(B) Effect of BL on coleoptile and root elongation in Kit and BiP3 ox seedlings.”
“One problem a grower can encounter with planting early is that the soil is too warm, which can keep the coleoptile from extending, the agronomist said.”
“Action actinomycin D auxin-induced growth Avena coleoptile section”
“Activation of Avena coleoptile cell wall glycosidases by hydrogen ions and auxin”
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