noun🔗ShareA small brook or stream; a streamlet."A rivulet of tears ran down his face."naturegeographyenvironmentChat with AIVocabulary GamePractice Reading
noun🔗SharePerizoma affinitatum, a geometrid moth."Because the specimen was identified as a rivulet, a type of geometrid moth, the entomology student carefully pinned it to the display board alongside other similar insects. "insectanimalbiologynatureChat with AIVocabulary GamePractice Reading
