13-Letter Words Matching ________TR___

There are 50 13-letter words that match ________TR___. 6 are common words, such as ETHNOCENTRISM and NONINDUSTRIAL. A rarer one is ULTRAFILTRATE. In this set, E is the most frequent open letter (48 words). 5 words contain a doubled letter.

Full list 50

Common words

ethnocentrismnonindustrialreconnoitringthunderstrucktoastmistressweatherstripsacrylonitrilebibliolatriescalorimetriescounterstrikecounterstrokedemonolatries
ethnocentrismnonindustrialreconnoitringthunderstrucktoastmistressweatherstripsacrylonitrilebibliolatriescalorimetriescounterstrikecounterstrokedemonolatrieshousemistresspostmenstrualpreindustrialpsychometricspsychometriespsychometristreconcentrateredemonstratethermometriesactinometriesalkalimetriesantielectronsaxisymmetriesbackcountriesbibliolatrouschronometriescolorimetriescounterstreamcraniometriescyclodextrinsdeconcentratedilatometriesdissymmetriesdynamometriesfluorimetriesfluorometriesinterdistrictmorphometriesnonmainstreamoverconstructpolarimetriesreorchestrateseismometriessubindustriestensiometriesthunderstrikethunderstrokeultrafiltrate

About this list

Words
50 (6 common words)
Common example
ethnocentrism
Rare example
ultrafiltrate
Doubled letters
5
Ending in S
29
Most frequent letter
E (48)

Questions

How many 13-letter words matching ________tr___ are there?

50. 6 of them are common words.

What is a common example?

ETHNOCENTRISM is among the common words in this set.