- any of several tall, showy feather palms of the genus Roystonea, as R. regia, having a trunk that is swollen in the middle.
Origin of royal palm
An Americanism dating back to 1860–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of several palm trees of the genus Roystonea, esp R. regia, of tropical America, having a tall trunk with a tuft of feathery pinnate leaves