semigroup
noun
semi·group ˈse-mē-ˌgrüp 
ˈse-ˌmī-,
-mi-
: a mathematical set that is closed under an associative binary operation
Word History
First Known Use
1904, in the meaning defined above
- Austin
- austin
- Austinian
- austinite
- austins
- Austr-
- austral
- Austral English
- Austral Islands
- Australasia
- australasiae
- australasian
- australasians
- australasias
- australer
- australes
- australest
- Australia
- Australia Day
- australiae
- Australian
- Australian Alps
- Australian anteater
- Australian badger
- Australian ballot