τρίβολος
Alt. τρί-^βολος, ον,
Etym. = τρι^βελής
I. as Subst. "a caltrop", i. e. "a three-spiked implement", formed so that one of the spikes must point upwards, used to lame the enemy's horses, Plut.
2. "a prickly plant, a burr, thistle", NTest.
II. τρίβολοι, οἱ, "a threshing-machine, boards with sharp stones fixed in the bottom", Anth.