litter noun definition in Pets topic from the Oxford Advanced Learner's Dictionary

litter

 noun: Pets topic
1 [uncountable] a dry substance that is put in a shallow open box for pets, especially cats, to use as a toilet when they are indoors cat litter (British English) a litter tray (North American English) a litter box2 [countable] a number of baby animals that one mother gives birth to at the same time a litter of puppies the runt (= the smallest and weakest baby) of the litter

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