15-Letter Words Matching __________R_T__

There are 19 15-letter words that match __________R_T__. 4 are common words, such as GASTROENTERITIS and MICROMETEORITES. A rarer one is ULTRADEMOCRATIC. In this set, E is the most frequent open letter (18 words). 2 words contain a doubled letter.

Full list 19

gastroenteritismicrometeoritesmonounsaturatedpolyunsaturatedatheroscleroticelectrophoreticinterpenetratedinterpenetratespolyunsaturatesdisequilibrateddisequilibratesmicrometeoriticmonounsaturatesnonaristocraticnonbarbituratesoverexaggeratedoverexaggeratesstadtholderatesultrademocratic

About this list

Words
19 (4 common words)
Common example
gastroenteritis
Rare example
ultrademocratic
Doubled letters
2
Ending in S
9
Most frequent letter
E (18)

Questions

How many 15-letter words matching __________r_t__ are there?

19. 4 of them are common words.

What is a common example?

GASTROENTERITIS is among the common words in this set.