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 chalaza (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 chalaza (audio) , -​ˈla-​ How to pronounce chalaza (audio) \ adjective

Examples of chalaza in a Sentence

Recent Examples on the Web Bird eggs include a chalaza, a little membrane that holds the yolk in place within the egg, O'Connor said. Ashley Strickland, CNN, 22 Sep. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chalaza.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of chalaza

1684, in the meaning defined at sense 1

History and Etymology for chalaza

New Latin, from Greek, hailstone

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Time Traveler for chalaza

Time Traveler

The first known use of chalaza was in 1684

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Dictionary Entries Near chalaza

Chalastogastra

chalaza

chalaziferous

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Statistics for chalaza

Cite this Entry

“Chalaza.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chalaza. Accessed 27 Jun. 2022.

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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 chalaza (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

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