20 letter words

We have listed 37 20-letter words for you in this WordMom word list. All these 20-letter words were verified by specialists in the English language.

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  • adrenocorticotrophic
  • adrenocorticotrophin
  • abetalipoproteinemia
  • antiestablishmentism
  • buckminsterfullerene
  • counterrevolutionary
  • compartmentalization
  • compartmentalisation
  • counterdemonstration
  • counterrevolutionist
  • crystallographically
  • electroencephalogram
  • electrocardiographic
  • hypercholesterolemia
  • histoincompatibility
  • hyperadrenocorticism
  • hyperlipoproteinemia
  • internationalisation
  • internationalization
  • incontrovertibleness
  • indistinguishability
  • immunohistochemistry
  • iodochlorhydroxyquin
  • keratoconjunctivitis
  • lipochondrodystrophy
  • magnetohydrodynamics
  • noninstitutionalised
  • noninstitutionalized
  • nephroangiosclerosis
  • oophorosalpingectomy
  • pseudohermaphroditic
  • paleoanthropological
  • palatopharyngoplasty
  • philoprogenitiveness
  • semiautobiographical
  • tetrahydrocannabinol
  • uncharacteristically