Definition of cockspur
1 : a cock's spur
2a : cockspur thorn b : a small West Indian tree (Pisonia aculeata) c in Honduras : any of several spiny trees of the genus Acacia d : a bur grass (Cenchrus echinatus) e : an annual European weed (Centaurea melitensis) naturalized in North and South America f : orchard grass
3 : spur 5e
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Origin and Etymology of cockspur
1cock + spur
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