12-Letter Words Matching __R_______C_

There are 18 12-letter words that match __R_______C_. 8 are common words, such as AERODYNAMICS and CIRCUMSTANCE. A rarer one is CARDIOTONICS. In this set, S is the most frequent open letter (17 words). 2 words contain a doubled letter.

Full list 18

aerodynamicscircumstanceperiodonticsperipateticsperseverancepyrotechnicsstreptococcisurveillanceaerodoneticsceroplasticsgerontocracyhermeneuticsnarcolepticspyrognosticsviridescenceacrocentricsacromegalicscardiotonics

About this list

Words
18 (8 common words)
Common example
aerodynamics
Rare example
cardiotonics
Doubled letters
2
Ending in S
12
Most frequent letter
S (17)

Questions

How many 12-letter words matching __r_______c_ are there?

18. 8 of them are common words.

What is a common example?

AERODYNAMICS is among the common words in this set.