15-Letter Words Matching __________G_A__

There are 14 15-letter words that match __________G_A__. 1 are common words, such as INTERCOLLEGIATE and MICROPHOTOGRAPH. A rarer one is RECHROMATOGRAPH. 1 words contain a doubled letter.

Full list 14

intercollegiatemicrophotographphotomicrographradiophotographthermobarographastrophotographechocardiogramselectromyogramselectromyographlymphangiogramsmacrophotographmicroradiographphotolithographrechromatograph

About this list

Words
14 (1 common words)
Common example
intercollegiate
Rare example
rechromatograph
Doubled letters
1
Ending in S
3

Questions

How many 15-letter words matching __________g_a__ are there?

14. 1 of them are common words.

What is a common example?

INTERCOLLEGIATE is among the common words in this set.