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1. Any of several annual weeds of the genus Xanthium in the composite family, having small seedlike fruits enclosed within a prickly bur that clings readily to clothing or animal fur.
2. A bur of this plant.
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.


1. (Plants) any coarse weed of the genus Xanthium, having spiny burs: family Asteraceae (composites)
2. (Plants) the bur of any of these plants
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkɒk əlˌbɜr)

any composite plant of the genus Xanthium, comprising coarse weeds with spiny burs.
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.cocklebur - any coarse weed of the genus Xanthium having spiny burrscocklebur - any coarse weed of the genus Xanthium having spiny burrs
genus Xanthium, Xanthium - coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles
weed - any plant that crowds out cultivated plants
2.cocklebur - burdock having heart-shaped leaves found in open woodland, hedgerows and rough grassland of Europe (except extreme N) and Asia Minorcocklebur - burdock having heart-shaped leaves found in open woodland, hedgerows and rough grassland of Europe (except extreme N) and Asia Minor; sometimes cultivated for medicinal and culinary use
burdock, clotbur - any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The objective is to produce an unmanned, autonomous machine that will: autonomously maneuver along two or four 150 ft rows at a time and turn at the row end, making two 150 ft passes; observe crop plants to assess their health; deliver fertilizer to distressed plants; identify three common weeds (giant ragweed, cocklebur, and foxtail) within and between rows; arrange for the weeds to be destroyed either chemically or mechanically as the machine moves through the field; and provide real-time observation of movement, plant identification, fertilization, and treatment back to the base.
It was an epiphany birthed from a frustrating encounter with a stubborn cocklebur that brought us Velero.
Grandpa and Bill ran into a big cocklebur patch and worked hard to chop it all down.
She would talk to me and laugh, but, of course, I understood nothing she said and remembered only the words." Cholo-wechep, the girl called him, "little white boy." That image is so tender, so touching, that it attached itself to my brain with the tenacity of a cocklebur when I first read it.
Soybean canopy formation effects on pitted morning glory (Ipomoea lacunosa), common cocklebur (Xanthium strumarium), and sickle pod (Senna obtusifolia) emergence.
The first few seasons, weeds like cocklebur and yellow top covered the field.
Mainly for the control of broad-leaved weeds in corn fields, such as cocklebur, three-leaf ragweed, velvetleaf, quinoa, amaranth, Polygonum, etc., can control part of the corn field weeds.
Unless for her relocation you totally reconstruct Fiddlersburg--every hump in the road, every sagged gatepost, every cocklebur patch and pig wallow, every flake of rust on the iron posts that hold up that corrugated metal awning in front of Perkins Dry Goods and the P.O.
SPT with house dust mite allergens (Der p1 and Der f1) and mixed pollen allergens from paper mulberry, cocklebur and grasses was also performed.
A field trial was conducted during the rainy seasons of 2011 and 2012 at the Agricultural Research Farm, Banaras Hindu University, Varanasi to study the efficacy of different rates of cocklebur extract (petroleum ether, methanol and water extract @ 1000mg [L.sup.-1], 2000mg [L.sup.-1] and 3000mg [L.sup.-1] respectively) on relative weed of rice and its nutrient content and depletion in transplanted rice.
Acuron offers broad-spectrum control of more than 70 weeds in corn, including giant ragweed, common ragweed, Palmer amaranth, waterhemp, marestail, kochia, cocklebur, morningglory and Russian thistle.
We present the case of a 7-year-old male patient with bilateral bronchial cocklebur fruit aspiration, which he sustained while playing.