Caltrop

[kæltrәp]

Definition

(noun.) tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed.

Checker: Melanie--From WordNet

Definition

(n.) Alt. of Caltrap

Edited by Lelia

Definition

n. an instrument armed with four spikes so arranged that one always stands upright used to obstruct the progress of an enemy's cavalry or of besiegers of a fortification.—Also Cal′trap.

Edited by Horace