a very small river; a small stream of water or other liquid 小河;小溪;溪流;细流 Rivulets of sweat ran down her back. 汗水顺着她的后背流下。 Rain ran in tiny rivulets down the window. 雨水顺着窗户流成小溪流。
Word Originlate 16th cent.: alteration of obsolete riveret (from French, literally ‘small river’), perhaps suggested by Italian rivoletto, diminutive of rivolo, based on Latin rivus ‘stream’.