adj. Linear (preserving linear combinations) in each variable.
n. A bilinear function
the GNU version of the Collaborative International Dictionary of English
adj. Of, pertaining to, or included by, two lines.
The Century Dictionary and Cyclopedia
Consisting of or having reference to two lines: as, bilinear coördinates.
Linear in two ways. Thus the form ΣiΣj aij xi yj is a bilinear form, that is, lineolinear.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. linear with respect to each of two variables or positions
Word Usage
"The far right is the 720 export from 1080i original from iMovie, and I found out that the closest effect was seen when I resized 1080i image to 720 using 'bilinear' interpolation, very cheap way to resize an image."