## EnglishEdit

### EtymologyEdit

*co-* + *intersection*

### NounEdit

**cointersection** (*plural* **cointersections**)

- (mathematics)
*This word needs a definition. Please help out and***add a definition,**then remove the text`{{rfdef}}`

.**1986**, Yves Diers,*Categories of Boolean sheaves of simple algebras*- the left adjoint […] preserves direct factors, their
**cointersections**, their complements and thus their counions

- the left adjoint […] preserves direct factors, their