13-Letter Words Matching _____S___M___

There are 14 13-letter words that match _____S___M___. 3 are common words, such as BRAINSTORMING and SCHUSSBOOMERS. A rarer one is THALASSAEMIAS. In this set, E is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 14

brainstormingschussboomerstransshipmentadmeasurementgymnospermousreconsignmentvouchsafementagamospermiesangiospermousbrainstormersgymnospermiesphysostigmineremeasurementthalassaemias

About this list

Words
14 (3 common words)
Common example
brainstorming
Rare example
thalassaemias
Doubled letters
3
Ending in S
7
Most frequent letter
E (13)

Questions

How many 13-letter words matching _____s___m___ are there?

14. 3 of them are common words.

What is a common example?

BRAINSTORMING is among the common words in this set.