单词 planchment 释义 planchment U.S. dial.[f. planch v. + -ment.]Boarding; spec. ceiling.1891Jrnl. Amer. Folk-lore No. 13 Planchment, ceiling. Now seldom heard. An old woman says: ‘The roof wets so, I'm afraid the planchment'll fall’.{var l=document.ge...