circumcircle
noun
cir·cum·cir·cle ˈsər-kəm-ˌsər-kəl 
: a circle which passes through all the vertices of a polygon (such as a triangle)
Word History
First Known Use
1885, in the meaning defined above
- in plaster
- in play
- in plenty
- in pocket
- in point of
- in point of fact
- in polite company
- in polite society
- in polite society/company
- in poor condition
- in poor etc. condition
- in poor taste
- in poor/bad (etc.) condition
- in practice
- in praesenti
- in praise of
- in preference to
- in preparation
- in preparation for
- in principle
- in print
- in private
- in pro
- in production
- in profile