9-Letter Words Matching ___S____C

There are 18 9-letter words that match ___S____C. 5 are common words, such as APOSTOLIC and DIASTOLIC. A rarer one is ZOOSPORIC. In this set, I is the most frequent open letter (18 words). 2 words contain a doubled letter.

Full list 18

apostolicdiastolicmessianicprismaticspasmodicepistemicgeostaticisostaticisostericmiasmaticplasmaticprostaticahistoriccausalgicdiastaticepistaticisosmoticzoosporic

About this list

Words
18 (5 common words)
Common example
apostolic
Rare example
zoosporic
Doubled letters
2
Ending in S
0
Most frequent letter
I (18)

Questions

How many 9-letter words matching ___s____c are there?

18. 5 of them are common words.

What is a common example?

APOSTOLIC is among the common words in this set.