12-Letter Words Matching H_E_________

There are 13 12-letter words that match H_E_________. 8 are common words, such as HAEMOGLOBINS and HAEMOPHILIAS. A rarer one is HIEROPHANTIC. In this set, A is the most frequent open letter (11 words). 5 words contain a doubled letter.

Full list 13

haemoglobinshaemophiliashaemorrhagedhaemorrhageshaemorrhoidsheedlessnesshierarchicalhieroglyphichaematoxylonhieraticallyhierarchizedhierarchizeshierophantic

About this list

Words
13 (8 common words)
Common example
haemoglobins
Rare example
hierophantic
Doubled letters
5
Ending in S
6
Most frequent letter
A (11)

Questions

How many 12-letter words matching h_e_________ are there?

13. 8 of them are common words.

What is a common example?

HAEMOGLOBINS is among the common words in this set.