a field whose elements are pairs of elements of a given commutative integral domain such that the second element of each pair is not zero. The field of rational numbers is the field of quotients of the integral domain of integers.
noun, Optics. 1. (def 13).
noun 1. the entire view encompassed by the eye when it is trained in any particular direction.
noun 1. a variety of the common pea, Pisum sativum arvense, grown for forage and silage.
- Field penny-cress
noun 1. the common penny-cress, Thlaspi arvense.