bilinear

from WordNet (r) 3.0 (2006)
bilinear
    adj 1: linear with respect to each of two variables or positions
    
from The Collaborative International Dictionary of English v.0.48
Bilinear \Bi*lin"e*ar\, a. (Math.)
   Of, pertaining to, or included by, two lines; as, bilinear
   co["o]rdinates.
   [1913 Webster]
    

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