15-Letter Words Matching H__R___________

There are 15 15-letter words that match H__R___________. 3 are common words, such as HEARTLESSNESSES and HEARTSICKNESSES. A rarer one is HYDROXYPROLINES. 4 words contain a doubled letter.

Full list 15

heartlessnessesheartsicknesseshydrocephalusesheartbreakinglyhierarchizationhydrocortisoneshydrodynamicisthydrometallurgyhydrostaticallyhydrobiologicalhydrobiologistshydromechanicalhydroxyapatiteshydroxylapatitehydroxyprolines

About this list

Words
15 (3 common words)
Common example
heartlessnesses
Rare example
hydroxyprolines
Doubled letters
4
Ending in S
7

Questions

How many 15-letter words matching h__r___________ are there?

15. 3 of them are common words.

What is a common example?

HEARTLESSNESSES is among the common words in this set.