12-Letter Words Matching _____H_M____

There are 16 12-letter words that match _____H_M____. 3 are common words, such as ANTECHAMBERS and UNFATHOMABLE. A rarer one is TRANSHUMANTS. In this set, A is the most frequent open letter (16 words). 1 words contain a doubled letter.

Full list 16

antechambersunfathomableunfathomablyagrochemicalglenohumeralornithomancypyrochemicalsuperhumanlytranshumanceagrichemicalcytochemicalexanthematicneurohumoralninnyhammerstetrahymenastranshumants

About this list

Words
16 (3 common words)
Common example
antechambers
Rare example
transhumants
Doubled letters
1
Ending in S
4
Most frequent letter
A (16)

Questions

How many 12-letter words matching _____h_m____ are there?

16. 3 of them are common words.

What is a common example?

ANTECHAMBERS is among the common words in this set.