15-Letter Words Matching ___________PI__

There are 13 15-letter words that match ___________PI__. 5 are common words, such as DAGUERREOTYPING and PHYSIOTHERAPIES. A rarer one is SIGMOIDOSCOPIES. 5 words contain a doubled letter.

Full list 13

daguerreotypingphysiotherapiesphysiotherapistpsychotherapiespsychotherapistbibliotherapieschronotherapiescountersteppingdaguerreotypiesdaguerreotypistimmunotherapiesparthenocarpiessigmoidoscopies

About this list

Words
13 (5 common words)
Common example
daguerreotyping
Rare example
sigmoidoscopies
Doubled letters
5
Ending in S
8

Questions

How many 15-letter words matching ___________pi__ are there?

13. 5 of them are common words.

What is a common example?

DAGUERREOTYPING is among the common words in this set.