from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Chiefly British Mother.

from the GNU version of the Collaborative International Dictionary of English

  • n. See alma mater, dura mater, and pia mater.

from The Century Dictionary and Cyclopedia

  • n. A Middle English form of matter.
  • n. Mother: in certain special uses. See alma mater, and phrases below.
  • n. In anatomy, one of two membranes or meninges of the brain, outer and inner, separated by the arachnoid, and distinguished as dura mater, or dura, and pia mater, or pia: so called from some idea that they produce the brain.—
  • n. The large metallic disk which forms the foundation of an astrolabe, and carries at its circumference the graduation upon which the indications of the alidade or index are read.

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

  • n. an informal use of the Latin word for mother; sometimes used by British schoolboys or used facetiously


Latin māter; see māter- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin māter ("mother"), partly via late-Middle English matere. (Wiktionary)
mate +‎ -er (Wiktionary)



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  • as in, "Look at them purdy maters on the vine!"

    April 2, 2007