15-Letter Words Matching H___O__________

There are 22 15-letter words that match H___O__________. 2 are common words, such as HISTORIOGRAPHER and HYDROCEPHALUSES. A rarer one is HYPNOTIZABILITY. In this set, I is the most frequent open letter (20 words). 5 words contain a doubled letter.

Full list 22

historiographerhydrocephalusesheliocentricityhistocompatiblehistoriographichomeopathicallyhydrocortisoneshydrodynamicisthydrometallurgyhydrostaticallyhypnotherapistsheliometricallyhistochemicallyhistopathologichistophysiologyhydrobiologicalhydrobiologistshydromechanicalhydroxyapatiteshydroxylapatitehydroxyprolineshypnotizability

About this list

Words
22 (2 common words)
Common example
historiographer
Rare example
hypnotizability
Doubled letters
5
Ending in S
6
Most frequent letter
I (20)

Questions

How many 15-letter words matching h___o__________ are there?

22. 2 of them are common words.

What is a common example?

HISTORIOGRAPHER is among the common words in this set.