15-Letter Words Matching ______E___R____

There are 18 15-letter words that match ______E___R____. 6 are common words, such as ARCHITECTURALLY and GASTROENTERITIS. A rarer one is ULTRADEMOCRATIC. 4 words contain a doubled letter.

Full list 18

architecturallygastroenteritismicrometeoritesnoninterferenceradiotelegraphsradiotelegraphyincommensurableinterpenetratedinterpenetratesphototelegraphycholinesterasesincommensurablyintracerebrallymicrometeoriticmicrometeoroidspectinesterasesroentgenographyultrademocratic

About this list

Words
18 (6 common words)
Common example
architecturally
Rare example
ultrademocratic
Doubled letters
4
Ending in S
7

Questions

How many 15-letter words matching ______e___r____ are there?

18. 6 of them are common words.

What is a common example?

ARCHITECTURALLY is among the common words in this set.