notam Syllabification: (no·tam)Pronunciation: /ˈnōtəm/ (also Notam)Definition of notam noun a written notification issued to pilots before a flight, advising them of circumstances relating to the state of flying. Origin: 1940s: from no(tice) t(o) a(ir)m(en)notam in other Oxford dictionaries Definition of notam in the British & World English dictionary