1. (n.)white fir a tall narrow fir, Abies concolor, of W North America.
2. white fir the soft wood of this tree, used for lumber and pulp.
Etymology: (1880–85, Amer.)
Definition of 'white fir'
Princeton's WordNet
1. (noun)white fir, Colorado fir, California white fir, Abies concolor, Abies lowiana medium to tall fir of central to western United States having a narrow erect crown and soft wood
2. (noun)amabilis fir, white fir, Pacific silver fir, red silver fir, Christmas tree, Abies amabilis medium to tall fir of western North America having a conic crown and branches in tiers; leaves smell of orange when crushed
Definitions of white fir 
