coextensive

from WordNet (r) 3.0 (2006)

coextensive
    adj 1: being of equal extent or scope or duration [syn:
           {coextensive}, {coterminous}, {conterminous}]

from The Collaborative International Dictionary of English v.0.48

Coextensive \Co`ex*ten"sive\, a.
   Equally extensive; having equal extent; as, consciousness and
   knowledge are coextensive. --Sir W. Hamilton. --
   {Co`ex*ten"sive*ly}, adv. -- Co`ex*ten"sive*ness, n.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

30 Moby Thesaurus words for "coextensive":
      aligned, analogous, coequal, coextending, coincident, coincidental,
      coinciding, collateral, concurrent, congruent, correspondent,
      corresponding, coterminous, equal, equidistant, equispaced,
      equivalent, even, lined up, nonconvergent, nondivergent, parallel,
      parallelepipedal, parallelinervate, paralleling, parallelodrome,
      parallelogrammatic, parallelogrammic, parallelotropic,
      synonymous

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