verb🔗ShareTo become yellow or more yellow."The old book pages are yellowing with age. "appearancecolorconditionChat with AIVocabulary GamePractice Reading
verb🔗ShareTo make (something) yellow or more yellow."The old book was yellowing with age. "appearancecolorChat with AIVocabulary GamePractice Reading
noun🔗ShareThe process of turning yellow."The yellowing of the old newspaper showed its age. "appearanceprocessconditioncolorChat with AIVocabulary GamePractice Reading