15-Letter Words Matching _AC____________

There are 21 15-letter words that match _AC____________. 5 are common words, such as BACKSCRATCHINGS and BACTERIOLOGICAL. A rarer one is TACHYARRHYTHMIA. 8 words contain a doubled letter.

Full list 21

backscratchingsbacteriologicalbacteriologistsfacetiousnesseslackadaisicallylactovegetarianmacrocosmicallymacroscopicallybackscatteringsbacteriophagiesmachinabilitiesmacroaggregatedmacroaggregatesmacroevolutionsmacrophotographmacrostructuralmacrostructuressacramentalismssacramentalistssacrosanctitiestachyarrhythmia

About this list

Words
21 (5 common words)
Common example
backscratchings
Rare example
tachyarrhythmia
Doubled letters
8
Ending in S
12

Questions

How many 15-letter words matching _ac____________ are there?

21. 5 of them are common words.

What is a common example?

BACKSCRATCHINGS is among the common words in this set.