15-Letter Words Matching ____O____H_____

There are 12 15-letter words that match ____O____H_____. 1 are common words, such as PHOTOSYNTHESIZE and MALNOURISHMENTS. A rarer one is PROTOPORPHYRINS. In this set, I is the most frequent open letter (10 words). 1 words contain a doubled letter.

Full list 12

photosynthesizemalnourishmentsmiscomprehendedneuropsychiatryoligosaccharideorthopsychiatrypaleopsychologyphenolphthaleinmicroearthquakemicromorphologyneuropsychologyprotoporphyrins

About this list

Words
12 (1 common words)
Common example
photosynthesize
Rare example
protoporphyrins
Doubled letters
1
Ending in S
2
Most frequent letter
I (10)

Questions

How many 15-letter words matching ____o____h_____ are there?

12. 1 of them are common words.

What is a common example?

PHOTOSYNTHESIZE is among the common words in this set.