13-Letter Words Matching ________H_L__

There are 20 13-letter words that match ________H_L__. 2 are common words, such as HYDROCEPHALUS and STRANGLEHOLDS. A rarer one is THROTTLEHOLDS. In this set, E is the most frequent open letter (19 words). 3 words contain a doubled letter.

Full list 20

hydrocephalusstrangleholdsbetweenwhileselectrophilichydrocephalicmacrocephalicmesencephalicmesencephalonmetencephalonmicrocephalicorthocephalictelencephalonelectrophilesleptocephalusmetencephalicmyrmecophilesoverwithholdspsychrophilictelencephalicthrottleholds

About this list

Words
20 (2 common words)
Common example
hydrocephalus
Rare example
throttleholds
Doubled letters
3
Ending in S
8
Most frequent letter
E (19)

Questions

How many 13-letter words matching ________h_l__ are there?

20. 2 of them are common words.

What is a common example?

HYDROCEPHALUS is among the common words in this set.