quadral

== English == === Alternative forms === quadrual, quatral === Etymology === From New Latin quadrālis, from quadru- (“four-”) + -ālis. === Pronunciation === (UK) IPA(key): /ˈkwɒdɹəl/ === Noun === quadral (countable and uncountable, plural quadrals) (grammar) A grammatical number referring to four (or more) things. (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). (rhetoric) A set of four phrases, separated by pauses when speaking or commas when writing. A foursome. === Adjective === quadral (not comparable) (grammar) Referring to four (or more) things; of, in or relating to the quadral grammatical number. (mathematics) Of or relating to quadral polynomials. ==== Usage notes ==== It has been contested whether this grammatical phenomenon exists in human languages. See also Grammatical number. === See also === (grammatical numbers) grammatical number; singular, dual, trial, quadral, quintal, paucal, plural (Category: en:Grammar)