13-Letter Words Matching __T________A_

There are 69 13-letter words that match __T________A_. 15 are common words, such as ANTIBACTERIAL and ANTIMICROBIAL. A rarer one is UNTHEORETICAL. In this set, I is the most frequent open letter (63 words). 11 words contain a doubled letter.

Full list 69

Common words

antibacterialantimicrobialastronauticalastrophysicalauthoritarianentomologicalextravaganzasinterculturalinternationalinterpersonalintramuscularmathematician
antibacterialantimicrobialastronauticalastrophysicalauthoritarianentomologicalextravaganzasinterculturalinternationalinterpersonalintramuscularmathematicianmetallurgicalpaterfamiliaspetrochemicalantichristianantidiarrhealautographicalentomostracanexterritorialextracellularextrajudicialextravascularintercellularintersiderealintracellularmaterfamiliasmetafictionalmetaphysicianmetrorrhagiasmitochondrialosteomalaciastetartohedraluntraditionalanticlassicalantipoliticalattributionalautecologicalautoradiogrambathymetricalcytogeneticaldeterminantalfuturologicalinteractionalintercolonialintercommunalintercorticalinterfamilialinterferogramintergranularintermarginalinterneuronalinterproximalinterregionalintersocietalinterterminalintertropicalintracerebralintrapersonalintravascularmetacercariaemetacercarialmythopoeticalosteosarcomasultracriticalultrafamiliarultraphysicalultrarationaluntheoretical

About this list

Words
69 (15 common words)
Common example
antibacterial
Rare example
untheoretical
Doubled letters
11
Ending in S
6
Most frequent letter
I (63)

Questions

How many 13-letter words matching __t________a_ are there?

69. 15 of them are common words.

What is a common example?

ANTIBACTERIAL is among the common words in this set.