12-Letter Words Matching ___O__P_____

There are 17 12-letter words that match ___O__P_____. 4 are common words, such as CHLOROPHYLLS and CHLOROPLASTS. A rarer one is POGONOPHORAN. In this set, O is the most frequent open letter (16 words). 1 words contain a doubled letter.

Full list 17

chlorophyllschloroplaststheosophicaltheosophistsautohypnosischloropicrinchloropreneschromoplastsgamosepalousmonosepalousautohypnosesautohypnoticchromophoreschromophorichypodiploidymucopeptidespogonophoran

About this list

Words
17 (4 common words)
Common example
chlorophylls
Rare example
pogonophoran
Doubled letters
1
Ending in S
11
Most frequent letter
O (16)

Questions

How many 12-letter words matching ___o__p_____ are there?

17. 4 of them are common words.

What is a common example?

CHLOROPHYLLS is among the common words in this set.