quadral

/K W AA1 D R AH0 L/
noun
  1. 1

    (grammar) A grammatical number referring to four (or more) things.

  2. 2

    A foursome.

  3. 3

    (rhetoric) A set of four phrases, separated by pauses when speaking or commas when writing.

  4. 4

    (mathematics) A set of points with all the combinatorial properties of a quadric (a quadric being the set of points of PG(n, q) whose coordinates satisfy a quadratic equation).

adjective
  1. 1

    (grammar) Referring to four (or more) things; of, in or relating to the quadral grammatical number.

  2. 2

    (mathematics) Of or relating to quadral polynomials.