Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Linear with respect to each of two variables or positions. Used of functions or equations.

from The Century Dictionary.

  • 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.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Math.) Of, pertaining to, or included by, two lines.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective mathematics, of a function in two variables Linear (preserving linear combinations) in each variable.
  • noun mathematics A bilinear function

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective linear with respect to each of two variables or positions

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From bi- +‎ linear.

Examples

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