Pronunciation: (sik'u-môr", -mōr"),[key] —n. 1. Also called buttonwood. any of several North American plane trees, esp. Platanus occidentalis, having shallowly lobed ovate leaves, globular seed heads, and wood valued as timber.
2. Brit.the sycamore maple.
3. a tree, Ficus sycomorus, of the Near East, related to the common fig, bearing an edible fruit.