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optic chiasma

noun
1.
a site at the base of the forebrain where the inner half of the fibers of the left and right optic nerves cross to the opposite side of the brain.
Also, optic chiasm.
Origin
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for optic chiasma
  • The optic chiasma is formed by the meeting and partial decussation of the fibers of the two optic nerves.

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