Slippery elm Meaning, Definition & Usage

  1. noun North American elm having rough leaves that are red when opening; yields a hard wood
    red elm; Ulmus rubra.

WordNet

Definitions
  1. . (Bot.) (a) An American tree (Ulmus fulva) with a mucilagenous and slightly aromatic inner bark which is sometimes used medicinally; also, the inner bark itself . (b) A malvaceous shrub (Fremontia Californica); so called on the Pacific coast.

Webster 1913