Nymphaea lotus nymp·haea·lo·tus uncommon noun 1. white Egyptian lotus: water lily of Egypt to southeastern Africa; held sacred by the Egyptians Synonymslotuswhite lotusEgyptian water lilywhite lilyNymphaea lotus Related words Broader terms water lily Parts Nymphaea WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.