An alder is a species of tree or shrub that grows especially in cool, damp places and loses its leaves in winter.
Alder is the wood from this tree.
alder in British English
(ˈɔːldə)
noun
1.
any N temperate betulaceous shrub or tree of the genus Alnus, having toothed leaves and conelike fruits. The bark is used in dyeing and tanning and the wood for bridges, etc because it resists underwater rot
2.
any of several similar trees or shrubs
Word origin
Old English alor; related to Old High German elira, Latin alnus
alder in American English
(ˈɔldər)
noun
any of a small group of rapidly growing trees and shrubs (genus Alnus) of the birch family, having toothed leaves and catkins, and growing in cool, moist soil in temperate and cold climates: the bark is used in dyeing and tanning, the wood is used for bridges and piles because it resists underwater rot, and the roots, which contain nitrogen-fixing organisms, help colonize raw soil
Word origin
ME alder, aller < OE alor, aler < IE base *el-: see elm
The smooth grey trunks of the beech, the gnarled oaks and huge spreading limes along with alder, holly and elm.
Stuart Harrison LOST SUMMER (2002)
Not valuable trees, you understand, just scrub, alder, a few Scots pine, rubbish really, but... environmentally attractive.
Lewis, Roy A TROUT IN THE MILK (2002)
Did not notice knots tied in the tips of the alder branches.
Annie Proulx THE SHIPPING NEWS (2002)
Word lists with
alder
tree
All related terms of 'alder'
black alder
a deciduous shrub ( Ilex verticillata ) of the holly family, native to E North America, with glossy leaves that turn black in the fall and bright-red berries
green alder
a variety of alder ( Alnus viridis ) common in temperate areas of the northern hemisphere
grey alder
a variety of alder ( Alnus incana ) with grey bark , common in temperate areas of the northern hemisphere
alder buckthorn
a Eurasian rhamnaceous shrub , Frangula alnus, with small greenish flowers and black berry-like fruits
Diels-Alder reaction
a type of chemical reaction in which one organic compound containing conjugated double bonds adds to another containing an ethylenic bond to form a product containing a ring
fothergilla
any of the deciduous shrub species in the witch-hazel family