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Definition of Chiasma
1. Noun. An intersection or crossing of two tracts in the form of the letter X.
Generic synonyms: Anatomical Structure, Bodily Structure, Body Structure, Complex Body Part, Structure
Specialized synonyms: Chiasma Opticum, Optic Chiasm, Optic Chiasma
Derivative terms: Chiasmal, Chiasmatic, Chiasmic, Decussate
Definition of Chiasma
1. Noun. (anatomy) A crossing of two nerves, ligaments etc. ¹
2. Noun. (genetics cytology) The contact point between the two chromatids of a chromosome during meiosis. ¹
¹ Source: wiktionary.com
Definition of Chiasma
1. an anatomical junction [n -MATA or -MAS] : CHIASMAL, CHIASMIC [adj]
Medical Definition of Chiasma
1.
Lexicographical Neighbors of Chiasma
Literary usage of Chiasma
Below you will find example usage of this term as found in modern and/or classical literature:
1. Quain's Elements of Anatomy by Jones Quain, Edward Albert Sharpey-Schäfer, George Dancer Thane, Johnson Symington (1893)
"At a short distance in front of the chiasma, this fissure is crossed transversely
by the anterior recurved extremity of the corpus callosum. On gently Fig. ..."
2. Science by American Association for the Advancement of Science (1883)
"Isochromosomes are distinctive in that two homologous arms are joined to a common
centromere. formed a chiasma with a frequency of 0.96. ..."
3. Anatomy of the brain and spinal cord with special reference to mechanism and by Harris Ellett Santee (1907)
"It extends from the anterior superior surface of the optic chiasma upward and
... The optic chiasma is a quadrilateral sheet of nerve fibers whose anterior ..."
4. Anatomy, Descriptive and Applied by Henry Gray (1913)
"The nerves of opposite sides are connected together at the optic chiasma, and
from the back of the chiasma the nerve fibres may be traced to the brain, ..."
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