15-Letter Words Matching ___I________L__

There are 17 15-letter words that match ___I________L__. 3 are common words, such as BIDIRECTIONALLY and ENVIRONMENTALLY. A rarer one is SOCIOCULTURALLY. 16 words contain a doubled letter.

Full list 17

bidirectionallyenvironmentallyinfinitesimallydolichocephalicperipateticallyperistalticallyradiometricallysocialisticallysolipsisticallytoxicologicallyepeirogenicallyeudiometricallyfetishisticallyheliometricallymagistraticallyradiochemicallysocioculturally

About this list

Words
17 (3 common words)
Common example
bidirectionally
Rare example
socioculturally
Doubled letters
16
Ending in S
0

Questions

How many 15-letter words matching ___i________l__ are there?

17. 3 of them are common words.

What is a common example?

BIDIRECTIONALLY is among the common words in this set.