Noun
One of the incomplete rings of the upper part of the bronchial tubes of most birds. The semerings form an essential part of the syrinx, or musical organ, of singing birds.
Source: Webster's dictionaryAn idempotent semiring (also sometimes called a dioid) is a semiring whose addition (not multiplication) is idempotent. Source: Internet
Let be the field of real numbers, and let be the semiring of natural numbers. Source: Internet
The natural numbers (including 0) form an algebraic structure known as a semiring (which has all of the properties of a ring except the additive inverse property). Source: Internet
One such axiomatization begins with the following axioms that describe a discrete ordered semiring. Source: Internet
The lack of additive inverses, which is equivalent to the fact that ℕ is not closed under subtraction, means that ℕ is not a ring ; instead it is a semiring (also known as a rig). Source: Internet