n. pl. [ Hind. pā-jāma, pāejāma, lit., leg closing. ] Originally, in India, loose drawers or trousers, such as those worn, tied about the waist, by Mohammedan men and women; by extension, a similar garment adopted among Europeans, Americans, etc., for wear in the dressing room and during sleep; also, a suit consisting of drawers and a loose upper garment for such wear. [ Also spelled pyjamas. ] [ Webster 1913 Suppl. ]

or, chiefly U. S., /mhw>, n. pl. A garment, similar to the Oriental pyjama (which see), adopted among Europeans, Americans, and other Occidentals, for wear in the dressing room and during sleep; also, a suit of drawers and blouse for such wear. [ Webster 1913 Suppl. ]