15-Letter Words Matching ___________G__T

There are 13 15-letter words that match ___________G__T. 2 are common words, such as ENDOCRINOLOGIST and OPHTHALMOLOGIST. A rarer one is SEDIMENTOLOGIST. In this set, O is the most frequent open letter (13 words). 2 words contain a doubled letter.

Full list 13

endocrinologistophthalmologistbiotechnologistgeochronologistpsychobiologistantiferromagnetchronobiologistcryptozoologistgeomorphologistoverextravagantphenomenologistroentgenologistsedimentologist

About this list

Words
13 (2 common words)
Common example
endocrinologist
Rare example
sedimentologist
Doubled letters
2
Ending in S
0
Most frequent letter
O (13)

Questions

How many 15-letter words matching ___________g__t are there?

13. 2 of them are common words.

What is a common example?

ENDOCRINOLOGIST is among the common words in this set.