13-Letter Words Matching ____O______A_

There are 70 13-letter words that match ____O______A_. 11 are common words, such as ASTRONAUTICAL and ASTROPHYSICAL. A rarer one is VALPOLICELLAS. In this set, L is the most frequent open letter (63 words). 7 words contain a doubled letter.

Full list 70

Common words

astronauticalastrophysicalauthoritarianmicroscopicalnoncommercialnonvocationalpetrochemicalphenobarbitalphilosophicalprepositionalpropositionalachlorhydrias
astronauticalastrophysicalauthoritarianmicroscopicalnoncommercialnonvocationalpetrochemicalphenobarbitalphilosophicalprepositionalpropositionalachlorhydriasaphrodisiacalcompositionalconnotationalconvocationalcosmochemicaldipsomaniacaldispositionaleconometricalfibrovascularhydrometricalhydrostaticalmacroscopicalmetrorrhagiasmicrocosmicalmicrosurgicalneuromuscularneurosurgicalneurovascularnongonococcalosteomalaciaspentobarbitalphotochemicalphotometricalphytochemicalplutocraticalprosopopoeiasradiochemicalradiotelegramsocioculturalsociometricalsuppositionalchemosurgicalcollocationalexplorationalfibrosarcomasgeopoliticianhistochemicalmicroculturalmicrofilariaemicrofilarialmicrophysicalmicrovascularmythopoeticalneurochemicalneurofibromasneurohormonalnonconceptualnonconsensualnonhomosexualnonpoliticiannormothermiasochlocraticalosteosarcomasovipositionalprevocationalsensorineuralsulfonylureasvalpolicellas

About this list

Words
70 (11 common words)
Common example
astronautical
Rare example
valpolicellas
Doubled letters
7
Ending in S
10
Most frequent letter
L (63)

Questions

How many 13-letter words matching ____o______a_ are there?

70. 11 of them are common words.

What is a common example?

ASTRONAUTICAL is among the common words in this set.