area opaca

noun
area opa·​ca | \ -ō-ˈpā-kə How to pronounce area opaca (audio) \

Medical Definition of area opaca

: the peripheral opaque area that surrounds the area pellucida of a vertebrate embryo (as of a bird) formed by discoidal cleavage

Comments on area opaca

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

WORD OF THE DAY

friendly or mild

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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!