13-Letter Words Matching _______L_O___

There are 15 13-letter words that match _______L_O___. 2 are common words, such as MONONUCLEOSES and MONONUCLEOSIS. A rarer one is PREGANGLIONIC. In this set, I is the most frequent open letter (12 words). 9 words contain a doubled letter.

Full list 15

mononucleosesmononucleosisaspergillosesaspergillosisquadrillionthquintillionthsalmonellosessalmonellosisantibillboardendotheliomasfestivalgoershydrocolloidslollapaloozasmesotheliomaspreganglionic

About this list

Words
15 (2 common words)
Common example
mononucleoses
Rare example
preganglionic
Doubled letters
9
Ending in S
11
Most frequent letter
I (12)

Questions

How many 13-letter words matching _______l_o___ are there?

15. 2 of them are common words.

What is a common example?

MONONUCLEOSES is among the common words in this set.