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also a·kene  (ā-kēn′)
A small, dry, indehiscent one-seeded fruit with a thin wall, as in a sunflower.

[New Latin achēnium : Greek a-, without; see a-1 + Greek khainein, to yawn.]

a·che′ni·al (-nē-əl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(əˈkiːn) or


(Botany) a dry one-seeded indehiscent fruit with the seed distinct from the fruit wall. It may be smooth, as in the buttercup, or feathery, as in clematis. Also called: achenium
[C19: from New Latin achaenium that which does not yawn or open, from a-1 + Greek khainein to yawn]
aˈchenial, aˈkenial adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(eɪˈkin, əˈkin)

any small, dry, hard, one-seeded, indehiscent fruit.
[1835–45; < New Latin achaenium=a- a-6 + Greek chaín(ein) to gape + New Latin -ium -ium2]
a•che′ni•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.achene - small dry indehiscent fruit with the seed distinct from the fruit wallachene - small dry indehiscent fruit with the seed distinct from the fruit wall
key fruit, samara, key - a winged often one-seed indehiscent fruit as of the ash or elm or maple
fruit - the ripened reproductive body of a seed plant
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In many cypselae (or achenes) species, the pericarp restricts embryo growth by two main ways: mechanical restriction and/or chemical inhibition.
After flowering starts until the complete filling of achenes, the sunflower plant becomes more sensitive to water deficit and its yield decreases in variable magnitudes according to the intensity and duration of the water deficit (Castro et al., 2006).
They live in flowers or achenes, as inquilines in abandoned galls of other cecidomyiids, or in association with fungi (Gagne 1994; Gagne & Jaschhof 2017).
Several of the materials used by these programs were obtained from the importation of seedlings and achenes from genetic improvement programs in the United States.
(2011) observed a decrease in the number and mass of achenes with an increase in the salinity levels in irrigation water.
In each mature capitulum, the number of disk flowers (nd) and the number of filled achenes (na) were counted.
The flowering top is somewhat denser than 1172.2, with slightly larger leaves, 3-5 leaflets per leaf, leaflets broadly lanceolate, and with larger achenes (5.0 x 3.5 mm).
The ovary is superior type and consists of 2 united carpels and produces 4 separate nutlets and produced dry seed achenes (dry seeds).
The samples were full of human excrement, which consisted of seeds and achenes, as well as fish bones and scales.
Highest head diameter, number of achenes per head, 1000-achene weight, achene yield, achene and stover nitrogen content, achene and stover phosphorus content and BCR was obtained with 100% P + dual inoculation.