quadrinomial

[ kwod-ruh-noh-mee-uh l ]
/ ˌkwɒd rəˈnoʊ mi əl /
Algebra.

adjective

consisting of four terms.

noun

a quadrinomial expression.

Origin of quadrinomial

British Dictionary definitions for quadrinomial

quadrinomial
/ (ˌkwɒdrɪˈnəʊmɪəl) /

noun

an algebraic expression containing four terms