n. A tall fan palm (Borassus flabellifer) of Africa and India and Malaysia yielding a hard wood and sweet sap that is a source of palm wine and sugar; the palmyra; -- its leaves are used for thatching and weaving. Syn. -- palmyra, palmyra palm, toddy palm, wine palm, longar palm, Borassus flabellifer. [ WordNet 1.5 ]