释义 |
keene's cement \ˈkēnz-\ noun Usage: usually capitalized K Etymology: after Richard W. Keene, 19th century English inventor : a hard-finish gypsum plaster to which alum has been added and which is used chiefly as a gauging plaster in lime mortar for walls (as of hospitals, stores, railroad stations) where an unusually tough and durable plaster is required |