fluorapatite fluo·ra·pa·tite UK/flʊəˈɹæpətaɪt/ uncommon noun 1. a form of apatite in which fluorine predominates over chlorine Related words Broader terms apatite Part of fluorine WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved.