13-Letter Words Matching ____R______U_

There are 19 13-letter words that match ____R______U_. 3 are common words, such as HETEROGENEOUS and SUPERSTITIOUS. A rarer one is SUPERPOWERFUL. 1 words contain a doubled letter.

Full list 19

heterogeneoussuperstitiousunceremoniousantireligiousarteriovenousgastrocnemiusheteropterousheterosporousmembranaceousoverrighteoussemireligiouscavernicolousenterocoelousheterocystoushypercautiousinterstimulusnongregarioussupercautioussuperpowerful

About this list

Words
19 (3 common words)
Common example
heterogeneous
Rare example
superpowerful
Doubled letters
1
Ending in S
18

Questions

How many 13-letter words matching ____r______u_ are there?

19. 3 of them are common words.

What is a common example?

HETEROGENEOUS is among the common words in this set.