etioporphyrin

noun
etio·por·phy·rin
variants: or chiefly British aetioporphyrin \-ˈpȯr-fə-rən \

Medical Definition of etioporphyrin 

: any of four isomeric porphyrins C32H38N4 especially : a violet crystalline pigment occurring in nature (as in petroleum and coal) and formed by degradation of chlorophyll and of heme

Learn More about etioporphyrin

Share etioporphyrin

Comments on etioporphyrin

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

WORD OF THE DAY

required by fashion, etiquette, or custom

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!