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Webster 1913 Edition

Noun.

(Bot.)

The common beam tree of England (

Pyrus Aria

); – so called from the white, woolly under surface of the leaves.

whitebeams Sorbus aria

whitebeam ‎(plural whitebeams)

Any of various deciduous trees of the genus Sorbus subg. Aria, native to Eurasia.

any of various Eurasian deciduous trees of the genus Sorbus subg. Aria