Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Grammarpartitivepar‧ti‧tive /ˈpɑːtətɪv $ ˈpɑːr-/ noun [countable] technical SLGa word which comes before a noun and shows that only part of something is being described, for example the word ‘some’ in the phrase ‘some of the cake’ —partitive adjective ldoceonline.com