13-Letter Words Matching _M___O_______

There are 21 13-letter words that match _M___O_______. 7 are common words, such as AMELIORATIONS and EMBRYOLOGISTS. A rarer one is IMMUNOSORBENT. In this set, I is the most frequent open letter (20 words). 10 words contain a doubled letter.

Full list 21

ameliorationsembryologistsemotionalismsemotionalizedemotionalizesimmunologicalimmunologistsembryologicalembryonicallyimmunotherapyomnicompetentembryogenesesembryogenesisembryogeneticemotionalistsemotionlesslyimmunochemistimmunogenesesimmunogenesisimmunogeneticimmunosorbent

About this list

Words
21 (7 common words)
Common example
ameliorations
Rare example
immunosorbent
Doubled letters
10
Ending in S
10
Most frequent letter
I (20)

Questions

How many 13-letter words matching _m___o_______ are there?

21. 7 of them are common words.

What is a common example?

AMELIORATIONS is among the common words in this set.