Definition of awn in English:

Share this entry

awn

Pronunciation: /ôn/

noun

Botany
A stiff bristle, especially one of those growing from the ear or flower of barley, rye, and many grasses.
Example sentences
  • Phenotypic traits include barbed lemmas, small sterile lateral spikelets, short glume awns, narrow leaves, semismooth awns, and long rachilla hairs.
  • Notably lacking are spikelet fragments, chaff, awns, pods, and weed seeds that comprise the debris from processing such crops for storage or from using dung as fuel.
  • Just before the fruit matures, it changes from green to brown and the awns separate from the central axis to disperse the seeds.

Derivatives

awned

adjective
Example sentences
  • The monosomic F 1 of the cross between monosomic 6B of CS and Norin 26 (awned cultivar) was awned, by which I could correctly capture b2.
  • The first morphological difference that arises between the lemma primordia of awned and calcaroides genotypes is marked by a change in the overall length of the organ.
  • In segregating F 2 populations, we registered the number of awned, awnless, and short-awned plants.

Origin

Old English, from Old Norse ǫgn; related to Swedish agn, Danish avn.

For editors and proofreaders

Syllabification: awn

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.