from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various deciduous trees of the genus Sorbus subg. Aria, native to Eurasia.
from the GNU version of the Collaborative International Dictionary of English
- n. The common beam tree of England (Pyrus Aria); -- so called from the white, woolly under surface of the leaves.
from The Century Dictionary and Cyclopedia
- n. A small Old World tree, Pyrus Aria, having the under side of its foliage, as well as the young twigs and inflorescence, clothed with silvery down. See beam-tree.
white (“(from the color of the leaves, when emergent and later the undersides)”) + beam (“tree”) – see Old English bēam. (Wiktionary)