any plant of the genus Pachysandra, as the Allegheny spurge or Japanese spurge, the leaves of which grow in a rounded clump, widely used as a ground cover in the U.S.
Origin: 1805–15; < Neo-Latin: the genus name, irregular from Greekpachýs thick + Greekandr- (stem of anḗr man; see andro-) + -a-a2; so called in reference to the thick stamens of the male flowers