- a tall, narrow fir, Abies concolor, of western North America, yielding a soft wood used for lumber, pulp, boxes, etc.
- the wood of this tree.
- any of various similar firs of western North America, or their wood.
Origin of white fir
An Americanism dating back to 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018