Alder

Al·der  (äldr), Kurt 1902-1958.

German chemist. He shared a 1950 Nobel Prize for discoveries concerning the structure of organic matter.

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al·der  (ôldr) n. 1. 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. 2. The wood of these plants, used in carvings and for making furniture and cabinets. [Middle English, from Old English alor.]

alder white alder Alnus rhombifolia

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alder

Noun

a tree with toothed leaves and conelike fruits, often found in damp places [Old English alor]

Thesaurus

Noun	1.	alder - wood of any of various alder trees; resistant to underwater rot; used for bridges etc alder tree, alder - north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant wood - the hard fibrous lignified substance under the bark of trees
	2.	alder - north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant alder tree Alnus, genus Alnus - alders alder - wood of any of various alder trees; resistant to underwater rot; used for bridges etc Alnus glutinosa, Alnus vulgaris, common alder, European black alder - medium-sized tree with brown-black bark and woody fruiting catkins; leaves are hairy beneath Alnus incana, gray alder, grey alder - native to Europe but introduced in America Alnus maritima, seaside alder - shrub or small tree of southeastern United States having soft light brown wood Alnus rhombifolia, white alder, mountain alder - tree of western United States Alnus rubra, Oregon alder, red alder - large tree of Pacific coast of North America having hard red wood much used for furniture Alnus rugosa, speckled alder - common shrub of Canada and northeastern United States having shoots scattered with rust-colored down Alnus serrulata, hazel alder, smooth alder - common shrub of the eastern United States with smooth bark Alnus veridis, green alder - shrub of mountainous areas of Europe Alnus crispa, Alnus veridis crispa, green alder - North American shrub with light green leaves and winged nuts tree - a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms