Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A protective sheath enclosing the shoot tip and embryonic leaves of grasses.

from The Century Dictionary.

  • noun Same as coleophyl.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun botany A pointed sheath that protects the emerging shoot in monocotyledons such as oats and grasses.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From New Latin coleoptilum : Greek koleon, sheath; see kel- in Indo-European roots + Greek ptilon, plume; see pet- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Based on Ancient Greek κολεός (koleos, "sheath") + πτίλον (ptilon, "feather").

Support

Help support Wordnik (and make this page ad-free) by adopting the word coleoptile.

Examples

  • (B) Effect of BL on coleoptile and root elongation in XA21 and BiP3 ox/XA21 seedlings.

    PLoS ONE Alerts: New Articles Chang-Jin Park et al. 2010

  • (B) Effect of BL on coleoptile and root elongation in Kit and BiP3 ox seedlings.

    PLoS ONE Alerts: New Articles Chang-Jin Park et al. 2010

  • (B) Effect of BL on coleoptile and root elongation in Kit and BiP3 ox seedlings.

    PLoS ONE Alerts: New Articles Chang-Jin Park et al. 2010

  • (B) Effect of BL on coleoptile and root elongation in XA21 and BiP3 ox/XA21 seedlings.

    PLoS ONE Alerts: New Articles Chang-Jin Park et al. 2010

  • 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.

    High Plains Journal 2008

  • Action actinomycin D auxin-induced growth Avena coleoptile section

    xml's Blinklist.com 2008

  • Activation of Avena coleoptile cell wall glycosidases by hydrogen ions and auxin

    xml's Blinklist.com 2008

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.