12-Letter Words Matching H____G______

There are 22 12-letter words that match H____G______. 6 are common words, such as HAEMOGLOBINS and HAGIOGRAPHER. A rarer one is HYDROGENASES. In this set, O is the most frequent open letter (21 words). 2 words contain a doubled letter.

Full list 22

haemoglobinshagiographerhieroglyphichooliganismshydrogenatedhydrogenateshagiographichectographedheliographedheliogravurehistogenesishydrogeologyhydrographerhydrographichypnogenesishaptoglobinsheliographichemangiomatahistogeneseshistogenetichumbuggerieshydrogenases

About this list

Words
22 (6 common words)
Common example
haemoglobins
Rare example
hydrogenases
Doubled letters
2
Ending in S
9
Most frequent letter
O (21)

Questions

How many 12-letter words matching h____g______ are there?

22. 6 of them are common words.

What is a common example?

HAEMOGLOBINS is among the common words in this set.