[slippery elm] n (1748): a large-leaved elm (Ulmus rubra syn. U. fulva) of eastern No. America that has hard wood and fragrant mucilaginous inner bark; also: the bark
SLIPPERY ELM
Meaning of SLIPPERY ELM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012