15-Letter Words Matching ________R___T__

There are 14 15-letter words that match ________R___T__. 1 are common words, such as PREKINDERGARTEN and DIMENHYDRINATES. A rarer one is NONELECTROLYTES. In this set, E is the most frequent open letter (14 words). 4 words contain a doubled letter.

Full list 14

prekindergartendimenhydrinatesheterochromaticheterochromatinradiomicrometerthermobarometerultramicrometerexoerythrocyticintercorrelatedintercorrelatesmacroaggregatedmacroaggregatesmicrosporocytesnonelectrolytes

About this list

Words
14 (1 common words)
Common example
prekindergarten
Rare example
nonelectrolytes
Doubled letters
4
Ending in S
5
Most frequent letter
E (14)

Questions

How many 15-letter words matching ________r___t__ are there?

14. 1 of them are common words.

What is a common example?

PREKINDERGARTEN is among the common words in this set.