(algebra, ring theory) Given a commutative ring R, any ideal I such that for any a,b ∈ R, if ab ∈ I then either b ∈ I or aⁿ ∈ I for some integer n > 0.

A native or inhabitant of Norwich, England. / A native or inhabitant of Norwich, Vermont, United States.

plural of hayfork

(organic chemistry) A bicyclic heterocycle composed of two pyrimidine rings fused together