Columbite :: Columbite (n.) A mineral of a black color, submetallic luster, and high specific specific gravity. It is a niobate (or columbate) of iron and manganese, containing tantalate of iron; -- first found in New England..
Columbium :: Columbium (n.) A rare element of the vanadium group, first found in a variety of the mineral columbite occurring in Connecticut, probably at Haddam. Atomic weight 94.2. Symbol Cb or Nb. Now more commonly called niobium..
Crumble :: Crumble (v. t.) To break into small pieces; to cause to fall in pieces.
Crumble :: Crumble (v. i.) To fall into small pieces; to break or part into small fragments; hence, to fall to decay or ruin; to become disintegrated; to perish..
Cucumber :: Cucumber (n.) A creeping plant, and its fruit, of several species of the genus Cucumis, esp. Cucumis sativus, the unripe fruit of which is eaten either fresh or picked. Also, similar plants or fruits of several other genera. See below..
Cumber :: Cumber (v. t.) To rest upon as a troublesome or useless weight or load; to be burdensome or oppressive to; to hinder or embarrass in attaining an object, to obstruct or occupy uselessly; to embarrass; to trouble..