ˈpīrəs noun
Usage: capitalized
Etymology: New Latin, from Latin pyrus, pirus pear-tree; akin to Latin pyrum, pirum pear — more at pear
: 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