Definify.com
Webster 1913 Edition
Buttonwood
But′ton-woodˊ
,Noun.
(Bot.)
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
.