1.
a. : of, relating to, or being a painted portrait measuring 30 by 25 inches or one showing the figure down to the hips only
b. : of, relating to, or being a photographic portrait showing the figure about to the knees
2. : extending to three-quarters of the normal full length
three-quarter coat
three-quarter sleeve
1.
a. : a three-quarter-length portrait
b. : a three-quarter-face portrait
c. : three-quarter lighting of a face or figure
2. or three-quarter back : a player in rugby whose regular position is between the standoff half and the fullback
Useful english dictionary. 2012.