hyperplane: Meaning and Definition of

hy•per•plane

Pronunciation: (hī'pur-plān", hī"pur-plān'), [key]
— n. Math.
  1. a subspace of a vector space that has dimension one less than the dimension of the vector space.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.