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Tribulus
Definition of Tribulus
: a genus of chiefly tropical or subtropical herbs (family Zygophyllaceae) introduced into North America with pinnate leaves and yellow or white flowers succeeded by a spiny or prickly fruit of five indehiscent tuberculate carpels — see burnut caltrop 1b puncture vine
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Origin and Etymology of tribulus
New Latin, from Latin, caltrop, from Greek tribolos, any of various prickly plants, threshing board studded with spikes; akin to Latin tribulum threshing board
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