chalaza

noun
cha·​la·​za | \kə-ˈlā-zə, -ˈla- \
plural chalazae\-​ˌzē \ 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 \-​ˈlā-​zəl, -​ˈla-​ \ 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

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The first known use of chalaza was circa 1704

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More Definitions for chalaza

chalaza

noun
cha·​la·​za | \kə-ˈlā-zə, -ˈlaz-ə \
plural chalazae\-​ˌzē \ 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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