13-Letter Words Containing RID

There are 21 13-letter words that contain RID. 3 are common words, such as FLUORIDATIONS and HYBRIDIZATION. A rarer one is THIORIDAZINES. In this set, E is the most frequent open letter (18 words). 2 words contain a doubled letter.

Full list 21

fluoridationshybridizationtriglyceridesdisaccharideshydrochloridepteridophytesstridulationssulfapyridinetetrachloridetrisaccharidecephaloridinemonoglycerideoveridealizedoveridealizespteridologiespteridologistpteridospermspyridoxaminessemiariditiestetrafluoridethioridazines

About this list

Words
21 (3 common words)
Common example
fluoridations
Rare example
thioridazines
Doubled letters
2
Ending in S
11
Most frequent letter
E (18)

Questions

How many 13-letter words containing rid are there?

21. 3 of them are common words.

What is a common example?

FLUORIDATIONS is among the common words in this set.