15-Letter Words Matching ___T_________I_

There are 21 15-letter words that match ___T_________I_. 3 are common words, such as GASTROENTERITIS and PARTHENOGENESIS. A rarer one is VENTRILOQUISTIC. 4 words contain a doubled letter.

Full list 21

gastroenteritisparthenogenesiswhatchamacallitacetophenetidincentrosymmetriccontortionisticdistributorshiphistoriographicparthenogenetichistopathologicophthalmoscopicparticularisticphotoelectronicphotogrammetricphytogeographicphytopathogenicphytoplanktonicplatyhelminthicpostapocalypticposthemorrhagicventriloquistic

About this list

Words
21 (3 common words)
Common example
gastroenteritis
Rare example
ventriloquistic
Doubled letters
4
Ending in S
2

Questions

How many 15-letter words matching ___t_________i_ are there?

21. 3 of them are common words.

What is a common example?

GASTROENTERITIS is among the common words in this set.