14-Letter Words Matching M_______O_____

There are 18 14-letter words that match M_______O_____. 4 are common words, such as METEOROLOGICAL and METEOROLOGISTS. A rarer one is MYRMECOLOGISTS. 2 words contain a doubled letter.

Full list 18

meteorologicalmeteorologistsmethodologicalmisanthropistsmegasporophyllmicrobarographmisanthropicalmorphophonemesmyocardiographmalariologistsmartyrologistsmegakaryocytesmegakaryocyticmethodologistsmonocarboxylicmotivationallymyrmecologicalmyrmecologists

About this list

Words
18 (4 common words)
Common example
meteorological
Rare example
myrmecologists
Doubled letters
2
Ending in S
8

Questions

How many 14-letter words matching m_______o_____ are there?

18. 4 of them are common words.

What is a common example?

METEOROLOGICAL is among the common words in this set.