Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

hyperthyroid

play
adjective hy·per·thy·roid \-ˈthī-ˌrȯid\

Definition of hyperthyroid

  1. :  of, relating to, or affected with hyperthyroidism



Origin and Etymology of hyperthyroid

back-formation from hyperthyroidism


First Known Use: 1916


Medical Dictionary

1

hyperthyroid

play
adjective hy·per·thy·roid \-ˈthī-ˌrȯid\

Medical Definition of hyperthyroid

  1. :  of, relating to, or affected with hyperthyroidism <a hyperthyroid state> <a hyperthyroid patient>




2

hyperthyroid

noun hy·per·thy·roid

Medical Definition of hyperthyroid

  1. :  a person affected with hyperthyroidism




Learn More about hyperthyroid

  1. Medical Dictionary: Definition of hyperthyroid


Seen and Heard

What made you want to look up hyperthyroid? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a simplified speech bridging languages

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

confounded-person

Which is a synonym of indolent?

philistine frenetic melancholy lazy
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ