Definition of Pyrus
: a genus of trees (family Rosaceae) native to the Old World that are distinguished by leaves which are mostly glabrous, hard and glossy at maturity, and involute in the bud but which have some or all the flower stalks in each cluster arising from a stout central column, by style usually separate at the base, and by fruit with abundant grit cells — compare malus — see pear
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Origin and Etymology of pyrus
New Latin, from Latin pyrus, pirus pear-tree; akin to Latin pyrum, pirum pear
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