Definition of Trithrinax
: a genus of South American fan palms having tough leaves with fibrous spiny sheaths, biconvex petiole, and prominent ligule
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Origin and Etymology of trithrinax
New Latin, from tri- + Greek thrinax three-pronged fork, perhaps from thrin- (akin to Latin terni three each) + akmē point, edge; from the form of the leaves
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