The American Heritage® Dictionary of the English Language, 4th Edition
n. See sycamore.
n. An evergreen shrub or tree (Conocarpus erectus) growing in mangrove forests of tropical America and western Africa and having alternate leathery leaves and small buttonlike heads of greenish flowers. Also called button mangrove.
n. The common name given to at least three species of shrub or tree.
the GNU version of the Collaborative International Dictionary of English
n. The Platanus occidentalis, or American plane tree, a large tree, producing rough balls, from which it is named; -- called also buttonball tree, and, in some parts of the United States, sycamore. The California buttonwood is Platanus racemosa.
The Century Dictionary and Cyclopedia
n. A common name in the West Indies of a low combreta-ceous tree, Conocarpus erecta, with very heavy, hard, and compact wood.
n. See buttonball.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. very large spreading plane tree of eastern and central North America to Mexico
Word Usage
"This name, as well as sycamore, is given, among us, to the large tree commonly called the buttonwood; but the tree here mentioned is different."