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

myoglobin

play
noun myo·glo·bin \-ˈglō-bən, ˈmī-ə-ˌ\

Definition of myoglobin

  1. :  a red iron-containing protein pigment in muscles that is similar to hemoglobin



Origin of myoglobin

International Scientific Vocabulary


First Known Use: 1925


Medical Dictionary

myoglobin

play
noun myo·glo·bin \ˌmī-ə-ˈglō-bən, ˈmī-ə-ˌ\

Medical Definition of myoglobin

  1. :  a red iron-containing protein pigment in muscles that is similar to hemoglobin but differs in the globin portion of its molecule, in the smaller size of its molecule (as in the mammalian heart muscle which has only one fourth the molecular weight of the hemoglobin in the blood of the same animal), in its greater tendency to combine with oxygen, and in its absorption of light at longer wavelengths—called also myohemoglobin




Learn More about myoglobin


Seen and Heard

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

WORD OF THE DAY

to eat gluttonously or ravenously

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin angry oily prompt
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