Meaning & use
chiasma
Last updated
A crossing point, especially the point where structures such as nerves or chromosomes intersect.
See it in a sentence
The optic chiasma is where the optic nerves from each eye partially cross.
During meiosis, a chiasma forms where homologous chromosomes exchange genetic material.
A note on using this word
From the Greek letter chi (X), reflecting the crossing shape; the plural is 'chiasmata'.
Words with a similar meaning
crossingintersection
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