fraction /'fraekjn; 'f rack Jan/ n 1 small part or bit. 小塊; 碎片。 2 number that is not a whole number 分?jǐn)?shù); 小數(shù) (eg 如 5/8, 0 76). ~al /-Jani; -Jani/ adj of or in ~s: 小塊的; 斷片的; 分?jǐn)?shù)的： ~al distillation, partial separation of liquids, eg petroleum, having different boilingpoints by gradual heating. 分餾法。