13-Letter Words Matching _____O_____U_

There are 27 13-letter words that match _____O_____U_. 2 are common words, such as HETEROGENEOUS and SEMICONSCIOUS. A rarer one is THERMOPHILOUS. In this set, S is the most frequent open letter (26 words). 2 words contain a doubled letter.

Full list 27

Common words

heterogeneoussemiconsciousactinouraniumcumulostratusentomophagousentomophilousforeconsciousfractocumulusfractostratusgastrocnemiusheteropterousheterosporous
heterogeneoussemiconsciousactinouraniumcumulostratusentomophagousentomophilousforeconsciousfractocumulusfractostratusgastrocnemiusheteropterousheterosporoushymenopterousinhomogeneouslepidopterousstercoraceousstratocumuluszoosporangiumbibliolatrouscamphoraceousenterocoeloushematophagousheterocystousmycetophagousodontoglossumoverconsciousthermophilous

About this list

Words
27 (2 common words)
Common example
heterogeneous
Rare example
thermophilous
Doubled letters
2
Ending in S
24
Most frequent letter
S (26)

Questions

How many 13-letter words matching _____o_____u_ are there?

27. 2 of them are common words.

What is a common example?

HETEROGENEOUS is among the common words in this set.