14-Letter Words Matching __________ID__

There are 21 14-letter words that match __________ID__. 1 are common words, such as ENCEPHALITIDES and HYDROCHLORIDES. A rarer one is TRINUCLEOTIDES. 4 words contain a doubled letter.

Full list 21

encephalitideshydrochloridespancreatitidespericarditidespolyneuritidessulfanilamidestetrachloridestrisaccharidesacetazolamidesappendicitidescycloheximidesendometritidesepididymitidesextrapyramidalfolliculitideshydrocolloidalhydroperoxidesmonoglyceridessubarachnoidaltetrafluoridestrinucleotides

About this list

Words
21 (1 common words)
Common example
encephalitides
Rare example
trinucleotides
Doubled letters
4
Ending in S
18

Questions

How many 14-letter words matching __________id__ are there?

21. 1 of them are common words.

What is a common example?

ENCEPHALITIDES is among the common words in this set.