# zeroid

Definition from Wiktionary, the free dictionary

## English[edit]

### Noun[edit]

**zeroid** (*plural* **zeroids**)

- (mathematics) A zero identity.
**1961**, Alfred Hoblitzelle Clifford, G. B. Preston,*The Algebraic Theory of Semigroups*(page 70)- If a semigroup
*S*contains a**zeroid**, then every left zeroid is also a right zeroid, and vice versa, and the set*K*of all the zeroids of*S*is the kernel of*S*.

- If a semigroup
**1993**, Keith Walker,*Surveys in combinatorics, 1993*(page 166)- Simplex
**zeroids**seem to provide an alternative framework for discussing the themes broached in this paper, and of course Theorems 1—4 can be reexpressed in terms of simplex zeroids.

- Simplex