15-Letter Words Matching _Y_______O_____

There are 14 15-letter words that match _Y_______O_____. 1 are common words, such as HYPERTHYROIDISM and DYSFUNCTIONALLY. A rarer one is SYMPTOMATOLOGIC. In this set, I is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 14

hyperthyroidismdysfunctionallylymphadenopathycytomegalovirusgynandromorphichydrobiologicalhydrobiologistshydroxyprolineshyperresponsivehypersomnolencehysterectomizedlymphangiogramslymphocytosisessymptomatologic

About this list

Words
14 (1 common words)
Common example
hyperthyroidism
Rare example
symptomatologic
Doubled letters
2
Ending in S
5
Most frequent letter
I (12)

Questions

How many 15-letter words matching _y_______o_____ are there?

14. 1 of them are common words.

What is a common example?

HYPERTHYROIDISM is among the common words in this set.