designating a family (Ulmaceae, order Urticales) of dicotyledonous trees growing largely in the North Temperate Zone
noun
any of a genus (Ulmus) of tall, deciduous shade trees of the elm family, once widely planted as a lawn tree
its hard, heavy wood
See elm in American Heritage Dictionary 4
(ĕlm)
noun
Any of various deciduous trees of the genus Ulmus, characteristically having arching or curving branches and serrate leaves with asymmetrical bases. Elms are widely planted as shade trees.