14-Letter Words Matching __________RA__

There are 39 14-letter words that match __________RA__. 5 are common words, such as ANTIPERSPIRANT and INCOMMENSURATE. A rarer one is UNCONTEMPORARY. In this set, O is the most frequent open letter (34 words). 3 words contain a doubled letter.

Full list 39

Common words

antiperspirantincommensurateparallelogramsquadrilateralsradiotelegraphautoradiographbarometrographcholinesteraseelectrotherapyencephalogramsencephalographinterpenetrate
antiperspirantincommensurateparallelogramsquadrilateralsradiotelegraphautoradiographbarometrographcholinesteraseelectrotherapyencephalogramsencephalographinterpenetratemastigophoransmechanotherapymicrobarographmyocardiographphototelegraphpolyunsaturateroentgenogramsroentgenographstockbrokeragetelephotographultrasonographautoradiogramscholangiogramsdisequilibrateforaminiferansintercorporateinterferogramsmethoxyfluranemonounsaturatenonbarbiturateoverexaggeratepectinesteraseplethysmogramsplethysmographradioautographstadtholderateuncontemporary

About this list

Words
39 (5 common words)
Common example
antiperspirant
Rare example
uncontemporary
Doubled letters
3
Ending in S
10
Most frequent letter
O (34)

Questions

How many 14-letter words matching __________ra__ are there?

39. 5 of them are common words.

What is a common example?

ANTIPERSPIRANT is among the common words in this set.