15-Letter Words Matching ______P_R______

There are 14 15-letter words that match ______P_R______. 4 are common words, such as CONTEMPORANEITY and CONTEMPORANEOUS. A rarer one is THERMOPERIODISM. In this set, I is the most frequent open letter (13 words). 2 words contain a doubled letter.

Full list 14

contemporaneitycontemporaneousdisproportionalnoncooperationsmicrosporangiummicrosporophyllantiseparatistsdisproportioneddistemperatureshematoporphyrininteroperativesmicrosporocytessulfinpyrazonesthermoperiodism

About this list

Words
14 (4 common words)
Common example
contemporaneity
Rare example
thermoperiodism
Doubled letters
2
Ending in S
7
Most frequent letter
I (13)

Questions

How many 15-letter words matching ______p_r______ are there?

14. 4 of them are common words.

What is a common example?

CONTEMPORANEITY is among the common words in this set.