资料来源 : pyDict

四项的四项式

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Quadrinomial \Quad`ri*no"mi*al\, n. [Quadri- + nomial, as in
   binomial: cf. F. quadrin[^o]me.] (Alg.)
   A polynomial of four terms connected by the signs plus or
   minus.