trinomial

• POS: Adjective, Noun
• HYPHEN: tri=no=mi=al

CIDE DICTIONARY

trinomial, n. [Pref. tri- + -nomial as in binomial: cf. F. trinôme.].

 A quantity consisting of three terms, connected by the sign + or -; as, x + y + z, or ax + 2b - c2.  [1913 Webster]

trinomial, a. 

•  Consisting of three terms; of or pertaining to trinomials; as, a trinomial root.  [1913 Webster]
•  Consisting of, or involving the use of, three terms; as, a trinomial systematic name specifying the genus, species, and variety.  [Webster 1913 Suppl.]

OXFORD DICTIONARY

trinomial, adj. & n.
--adj. consisting of three terms.
--n. a scientific name or algebraic expression of three terms.

Etymology

TRI- after BINOMIAL

ROGET THESAURUS

trinomial

Triality

N triality, trinity, triunity, three, triad, triplet, trey, trio, ternion, leash, shamrock, tierce, spike-team, trefoil, triangle, trident, triennium, trigon, trinomial, trionym, triplopia, tripod, trireme, triseme, triskele, triskelion, trisula, third power, cube, cube root, three, triform, trinal, trinomial, tertiary, ternary, triune, triarch, triadie, triple, tri-, tris-, tria juncta in uno, triality, trinity, triunity, three, triad, triplet, trey, trio, ternion, leash, shamrock, tierce, spike-team, trefoil, triangle, trident, triennium, trigon, trinomial, trionym, triplopia, tripod, trireme, triseme, triskele, triskelion, trisula, third power, cube, cube root, three, triform, trinal, trinomial, tertiary, ternary, triune, triarch, triadie, triple, tri-, tris-, tria juncta in uno.