GNU Collaborative International Dictionary of English

Found one definition

1.       
   ‖Elæis , n. [NL., fr. Gr.  olive tree.] (Bot.) A genus of palms.
   1913 Webster
   ☞ Elæis Guineensis, the African oil palm, is a tree twenty or thirty feet high, with immense pinnate leaves and large masses of fruit. The berries are rather larger than olives, and when boiled in water yield the orange-red palm oil.
   1913 Webster