|a fool or simpleton; ninny.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|cycloalkane (sī'klō-āl'kān) Pronunciation Key
Any of various cyclic saturated hydrocarbons having the general formula CnH2n. Cycloalkanes are alkanes formed into a closed ring. They are one of the three main constituents of crude oil, the other two being alkanes and aromatic compounds. Also called naphthene.