15-Letter Words Matching P____P_________

There are 17 15-letter words that match P____P_________. 2 are common words, such as PLENIPOTENTIARY and PRESUPPOSITIONS. A rarer one is PROTOPORPHYRINS. In this set, I is the most frequent open letter (16 words). 4 words contain a doubled letter.

Full list 17

plenipotentiarypresuppositionspaleopsychologypostoperativelyprecipitatenessprecipitousnesspathophysiologyphotoperiodismsphotoproductionphytopathogenicphytoplanktonicpostapocalypticprecipitantnessprecipitinogenspreimplantationprosopographiesprotoporphyrins

About this list

Words
17 (2 common words)
Common example
plenipotentiary
Rare example
protoporphyrins
Doubled letters
4
Ending in S
8
Most frequent letter
I (16)

Questions

How many 15-letter words matching p____p_________ are there?

17. 2 of them are common words.

What is a common example?

PLENIPOTENTIARY is among the common words in this set.