chalaza

noun
cha·​la·​za | \ kə-ˈlā-zə How to pronounce chalaza (audio) , -ˈla- How to pronounce chalaza (audio) \
plural chalazae\ kə-​ˈlā-​ˌzē How to pronounce chalazae (audio) , -​ˈla-​ \ or chalazas

Definition of chalaza

1 : either of two spiral bands in the white of a bird's egg that extend from the yolk and attach to opposite ends of the lining membrane — see egg illustration
2 : the basal part of a plant ovule where the nucellus is fused to the surrounding integument and to which the funiculus is usually attached

Other Words from chalaza

chalazal \ kə-​ˈlā-​zəl How to pronounce chalazal (audio) , -​ˈla-​ How to pronounce chalazal (audio) \ adjective

First Known Use of chalaza

circa 1704, in the meaning defined at sense 1

History and Etymology for chalaza

New Latin, from Greek, hailstone

Keep scrolling for more

Learn More about chalaza

Statistics for chalaza

Look-up Popularity

Time Traveler for chalaza

The first known use of chalaza was circa 1704

See more words from the same year

Keep scrolling for more

More Definitions for chalaza

chalaza

noun
cha·​la·​za | \ kə-ˈlā-zə How to pronounce chalaza (audio) , -ˈlaz-ə How to pronounce chalaza (audio) \
plural chalazae\ -​ˌzē How to pronounce chalazae (audio) \ or chalazas

Medical Definition of chalaza

: either of a pair of spiral bands in the white of a bird's egg that extend from the yolk and attach to opposite ends of the lining membrane

Comments on chalaza

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

WORD OF THE DAY

a shady place in a garden or forest

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!