[noor-uh-luh, nyoor-]
noun, plural neurulas, neurulae [noor-uh-lee, -lahy, nyoor-] . Embryology.
an embryo in the stage of development in which part of the ectoderm is differentiated into neural tissue and in which the neural tube, which develops into the brain and spinal cord, is formed.

1905–10; < Neo-Latin; see neur-, -ule

neurular, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Medical Dictionary

neurula neu·ru·la (nur'ə-lə, -yə-lə, nyur'-)
n. pl. neu·ru·lae (-lē')
An early stage of embryonic development in which neurulation begins.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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