Wiktionary
n. (context neuroanatomy English) The part of the brain where the optic nerves partially cross.
WordNet
n. the crossing of the optic nerves from the two eyes at the base of the brain [syn: optic chiasma, chiasma opticum]
Wikipedia
The optic chiasm or optic chiasma ( Greek , "crossing", from the Greek 'to mark with an X', after the Greek letter ' Χ', chi) is the part of the brain where the optic nerves (CN II) partially cross. The optic chiasm is located at the bottom of the brain immediately below the hypothalamus. The optic chiasm is found in all vertebrates, although in cyclostomes (lampreys and hagfishes) it is located within the brain.
Usage examples of "optic chiasm".
The suprachiasmatic nucleus of the hypothalamus, which is located right above your optic chiasm, serves as the reset button, as it were, of your sense of time—.
The suprachiasmatic nucleus of the hypothalamus, which is located right above your optic chiasm, serves as the reset button, as it were, of your sense of timeso thats what I want to begin with.