douglas fir

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Related to Douglas-fir: Pseudotsuga menziesii, Pseudotsuga

Douglas fir

Pseudotsuga menziesii

Douglas fir

Any of several tall evergreen conifers of the genus Pseudotsuga, especially P. menziesii of western North America.

[After David Douglas (1798-1834), Scottish botanist.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Douglas fir

Douglas spruce

Douglas hemlock

(Plants) a North American pyramidal coniferous tree, Pseudotsuga menziesii, widely planted for ornament and for timber, having needle-like leaves and hanging cones: family Pinaceae. Also called: Oregon fir or Oregon pine

[C19: named after David Douglas (1798–1834), Scottish botanist]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Doug′las fir′

a giant North American evergreen tree, Pseudotsuga menziesii, of the pine family, used for timber and as a Christmas tree.

Also called Doug′las pine′, Doug′las spruce′.

[1855–60; after David Douglas (1798–1834), Scottish botanist]

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Noun	1.	douglas fir - strong durable timber of a douglas fir fir - nonresinous wood of a fir tree douglas fir - tall evergreen timber tree of western North America having resinous wood and short needles
	2.	douglas fir - tall evergreen timber tree of western North America having resinous wood and short needles genus Pseudotsuga, Pseudotsuga - douglas fir; closely related to genera Larix and Cathaya douglas fir - strong durable timber of a douglas fir douglas hemlock, douglas pine, douglas spruce, green douglas fir, Oregon fir, Oregon pine, Pseudotsuga menziesii - lofty douglas fir of northwestern North America having short needles and egg-shaped cones big-cone douglas fir, big-cone spruce, Pseudotsuga macrocarpa - douglas fir of California having cones 4-8 inches long conifer, coniferous tree - any gymnospermous tree or shrub bearing cones

Translations

Douglas fir

, Douglas pine

n → Douglastanne f

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

References in periodicals archive ?

Our results suggest that Red Squirrels in winter contribute Douglas-fir twigs to the forest floor.

Douglas-fir clippings by American Red Squirrels (Tamiasciurus hudsonicus): a potential winter food source for Mule Deer (Odocoileus hemionus)

We maintain active breeding and field testing programs in both our loblolly pine and Douglas-fir regions.

Biotechnology in forestry: the promise and the economic reality

Wildlife and vegetation in unmanaged Douglas-fir forests.

Habitat and microhabitat use by the red tree vole (Phenacomys longicaudus)

Among the most important would be Douglas-fir (Pseudotsuga menziesii), which is often exported outside the region in log and lumber form (Morgan et al.

Potential for Using Borates to Mitigate the Risk of Phytophthora ramorum Spread on Douglas-Fir Logs

The authors observed the effects of dispersing, piling, and removing logging debris at three Oregon sites where they compared the survival and growth rate of Douglas-fir seedlings.

Logging debris vs. invasives

Douglas-fir (Pseudotsuga menzesii) and southern yellow pine (Pinus spp.) are the two main softwoods used for manufacture of engineered wood composites and structural lumber in the United States (Howard 2007).

Fundamental Bonding Properties of Douglas-Fir and Southern Yellow Pine Wood

Below is a picture of Jerry Magera and his son Sam in the spring of 2001 standing in a recently thinned stand of mixed ponderosa pine, Douglas-fir, and tamarack.

Economics of forest restoration: the case for careful logging is made by a father and son team that aims to leave things better than it found them

Destructive bending tests were performed on crossarm samples of southern pine (Pinus spp.) and Douglas-fir (Pseudotsuga menziesii).

Comparison of wood utility crossarm properties from 1995 and 2015

When Apollo 14 launched January 31, 1971, Roosa carried with him hundreds of loblolly pine, sycamore, sweetgum, redwood, and Douglas-fir seeds.