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Definition of 'chiasma'

Random House Webster's College Dictionary

1. (n.) chiasma
Anat. a crossing or decussation.

2. chiasma
a point of overlap of paired chromatids at which fusion and exchange of genetic material take place during prophase of meiosis.

Etymology: (1830–40; < Gk: crosspiece of wood, cross-bandage =chichi+-asma n. suffix)

Definition of 'chiasma'

Princeton's WordNet

1. (noun) chiasma, chiasm, decussation
an intersection or crossing of two tracts in the form of the letter X

Definition of 'chiasma'

Webster Dictionary

1. (noun) chiasma
a commissure; especially, the optic commissure, or crucial union of the optic nerves

'chiasma' - Nearby Entries
chian turpentine chianti chiaroscuro chiasma chiasma opticum chiasmal chiasmatic

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