15-Letter Words Matching ____H__O_______

There are 17 15-letter words that match ____H__O_______. 3 are common words, such as PARTHENOGENESES and PARTHENOGENESIS. A rarer one is TRICHOMONACIDES. In this set, I is the most frequent open letter (15 words). 6 words contain a doubled letter.

Full list 17

parthenogenesesparthenogenesispsychologicallymorphologicallyparthenogeneticpsephologicallypsychotomimeticstaphylorrhaphyepiphenomenallynonphilosophersnonphotographicoverhomogenizedoverhomogenizesparthenocarpiesposthemorrhagictrichomonacidaltrichomonacides

About this list

Words
17 (3 common words)
Common example
parthenogeneses
Rare example
trichomonacides
Doubled letters
6
Ending in S
6
Most frequent letter
I (15)

Questions

How many 15-letter words matching ____h__o_______ are there?

17. 3 of them are common words.

What is a common example?

PARTHENOGENESES is among the common words in this set.