corona radiata

American  

[kuh-roh-nuh rey-dee-ey-tuh] / kəˈroʊ nə ˌreɪ diˈeɪ tə /

noun

Anatomy.

plural

coronae radiatae

1. the layer of follicle cells surrounding an ovum and remaining attached to it following ovulation.

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Etymology

Origin of corona radiata

From New Latin, dating back to 1840–50; corona, radiate

Example Sentences

The digestive enzymes released by this reaction digest the extracellular matrix of the corona radiata.

From Textbooks • Jun. 19, 2013

As it is swept along the distal uterine tube, the oocyte encounters the surviving capacitated sperm, which stream toward it in response to chemical attractants released by the cells of the corona radiata.

From Textbooks • Jun. 19, 2013

The cortex is the least resistant part, and next in order follow the corona radiata, the grey matter of the spinal cord, the pons, and, last, the medulla oblongata.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander

As the fibres of the internal capsule run up toward the cortex they decussate with the transverse fibres of the corpus callosum and spread out to form the corona radiata.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" by Various