15-Letter Words Matching _____R________T

There are 13 15-letter words that match _____R________T. 6 are common words, such as CONSERVATIONIST and CONSTRUCTIONIST. A rarer one is SEMITRANSLUCENT. 4 words contain a doubled letter.

Full list 13

conservationistconstructionistendocrinologistinsurrectionistpreservationistsemitransparentgeochronologistresurrectionistdaguerreotypisteclaircissementgeomorphologistpreformationistsemitranslucent

About this list

Words
13 (6 common words)
Common example
conservationist
Rare example
semitranslucent
Doubled letters
4
Ending in S
0

Questions

How many 15-letter words matching _____r________t are there?

13. 6 of them are common words.

What is a common example?

CONSERVATIONIST is among the common words in this set.