13-Letter Words Matching __O_P________

There are 16 13-letter words that match __O_P________. 3 are common words, such as AMORPHOUSNESS and INOPPORTUNELY. A rarer one is PHOSPHORYLATE. 4 words contain a doubled letter.

Full list 16

amorphousnessinopportunelyprospectivelyinopportunityphospholipidephospholipidsphosphorylasezoosporangiumphosphatidylsphosphatizingphosphaturiasphosphokinasephospholipasephosphorescedphosphorescesphosphorylate

About this list

Words
16 (3 common words)
Common example
amorphousness
Rare example
phosphorylate
Doubled letters
4
Ending in S
5

Questions

How many 13-letter words matching __o_p________ are there?

16. 3 of them are common words.

What is a common example?

AMORPHOUSNESS is among the common words in this set.