from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various deciduous shrubs or trees of the genus Alnus, native chiefly to northern temperate regions and having alternate simple toothed leaves and tiny fruits in woody, conelike catkins.
- n. The wood of these plants, used in carvings and for making furniture and cabinets.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several trees or shrubs of the genus Alnus, belonging to the birch family.
from the GNU version of the Collaborative International Dictionary of English
- n. A tree, usually growing in moist land, and belonging to the genus Alnus. The wood is used by turners, etc.; the bark by dyers and tanners. In the U. S. the species of alder are usually shrubs or small trees.
- adj. Of all; -- used in composition.
from The Century Dictionary and Cyclopedia
- n. The popular name of shrubs and trees belonging to the genus Alnus, natural order Cupuliferæ.
- n. A name of species of other widely different genera, from their resemblance to true alders.
- n. An old form of elder.
- The Middle English genitive plural of all.
- n. A shrub of the genus Fothergilla, of the southeastern United States.
- n. Alnus rhombifolia, of the western United States.
- n. The striped maple, Acer Pennsylvanicum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant
- n. wood of any of various alder trees; resistant to underwater rot; used for bridges etc
Middle English, from Old English alor.(American Heritage® Dictionary of the English Language, Fourth Edition)
Middle English alder, aller, from Old English alor, from Proto-Germanic *aluz, *alusō (compare Swedish al, East Frisian ällerboom), variant of *alizō, *alisō (compare Dutch els, German Erle), from Proto-Indo-European *h₂élisos (compare Hittite alanza(n), Latin alnus, Latvian àlksnis, Polish olcha, Albanian halë 'black pine', Ancient Macedonian (Hesychius) άλιχα (álicha, "white poplar") (Wiktionary)