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. 汗水流了下来。 Rain ran in tiny rivulets down the window. 雨水顺着窗户往小河里冲来。
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’.