15-Letter Words Matching P___________A__

There are 12 15-letter words that match P___________A__. 2 are common words, such as PHARMACEUTICALS and PLENIPOTENTIARY. A rarer one is PSYCHOCHEMICALS. In this set, T is the most frequent open letter (10 words). 3 words contain a doubled letter.

Full list 12

pharmaceuticalsplenipotentiarypharmacotherapyphotomicrographphotodissociatephotolithographphytoflagellatepredestinarianspremillenariansprotohistorianspseudocoelomatepsychochemicals

About this list

Words
12 (2 common words)
Common example
pharmaceuticals
Rare example
psychochemicals
Doubled letters
3
Ending in S
5
Most frequent letter
T (10)

Questions

How many 15-letter words matching p___________a__ are there?

12. 2 of them are common words.

What is a common example?

PHARMACEUTICALS is among the common words in this set.