'Bilinear' definitions:

Definition of 'bilinear'

From: WordNet
adjective
Linear with respect to each of two variables or positions

Definition of 'Bilinear'

From: GCIDE
  • Bilinear \Bi*lin"e*ar\, a. (Math.) Of, pertaining to, or included by, two lines; as, bilinear co["o]rdinates. [1913 Webster]