15-Letter Words Matching ____O__Y_______

There are 13 15-letter words that match ____O__Y_______. 2 are common words, such as ASTROPHYSICISTS and NITROGLYCERINES. A rarer one is PATHOPHYSIOLOGY. In this set, S is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 13

astrophysicistsnitroglycerinesazidothymidinesneurophysiologyneuropsychiatryorthopsychiatrypaleopsychologysaprophyticallyastrophysicallyhistophysiologymicrophysicallyneuropsychologypathophysiology

About this list

Words
13 (2 common words)
Common example
astrophysicists
Rare example
pathophysiology
Doubled letters
3
Ending in S
3
Most frequent letter
S (13)

Questions

How many 15-letter words matching ____o__y_______ are there?

13. 2 of them are common words.

What is a common example?

ASTROPHYSICISTS is among the common words in this set.