13-Letter Words Matching __________RA_

There are 38 13-letter words that match __________RA_. 8 are common words, such as ARCHITECTURAL and HORTICULTURAL. A rarer one is VENTROLATERAL. 3 words contain a doubled letter.

Full list 38

Common words

architecturalhorticulturalinterculturalmulticulturalnonstructuralparallelogrampreternaturalquadrilateralacciaccaturasappoggiaturascephalothoraxencephalogram
architecturalhorticulturalinterculturalmulticulturalnonstructuralparallelogrampreternaturalquadrilateralacciaccaturasappoggiaturascephalothoraxencephalogrammastigophorannomenclaturalpisciculturalradiotelegramroentgenogramsilviculturalsocioculturalsubternaturaltetartohedralautoradiogramcholangiogramcontralateralfloriculturalforaminiferalforaminiferaninterferogramintracerebralmicroculturalmultispectralnonbehavioralplethysmogrampostinauguralsensorineuralsubstructuraltransculturalventrolateral

About this list

Words
38 (8 common words)
Common example
architectural
Rare example
ventrolateral
Doubled letters
3
Ending in S
2

Questions

How many 13-letter words matching __________ra_ are there?

38. 8 of them are common words.

What is a common example?

ARCHITECTURAL is among the common words in this set.