chiasma

(redirected from chiasmic)
Also found in: Dictionary, Thesaurus, Medical.
Related to chiasmic: chasmic

chiasma

(kīăz`mə): see crossing overcrossing over,
process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis. At that stage each chromosome has replicated into two strands called sister chromatids.
..... Click the link for more information.
.

chiasma

[kī′az·mə]
(anatomy)
A cross-shaped point of intersection of two parts, especially of the optic nerves.
(cell and molecular biology)
The point of junction and fusion between paired chromatids or chromosomes, first seen during diplotene of meiosis.
References in periodicals archive ?
This obliges us to make a modification to the chiasmic schema we presented to explain Zizek formal theory (section 3.
It is therefore necessary to examine these fears in order to understand the regulatory practices engendered by the chiasmic slide between nature and technology that rearranges the cultural domains of subject/object as fields wherein the materialization of women's bodies limits women's opportunities for social fulfillment.
Puerto Rico was thus, in White's technically duplicitous judicial opinion, a double oxymoron, whose chiasmic structure, in the place where its identity, and its agency, ought to have been, formed literally an X.
Originally, however, it was likely parallel to line e and in chiasmic construction with it.
Alternatively, the two volumes may be chiasmic in creating a nothingness or absence at the center, between two slabs of black marks.
To this poem, readers generally responded by feeling the emotions and perceiving the gaps in the form but only rarely seeing its chiasmic structure.
In comparing his love of Sack with his love of the lady, and by means of a series of chiasmic poetic developments and structures, Sack is substituted for the lady, the former being sacralized even as the latter is profanized.
Fittingly for the chiasmic play of inside/outside looked at in this passage, the human shell, the skeleton, is on the inside.
Levinas's invocation of the chiasmic figure recalls the Greek [chi], as Simon Critchley explains.
On the other hand, she draws the "double dialectical or chiasmic model of gender" out of Irigaray's critiques of Hegel.
Judith Butler, in Bodies That Matter: On the Discursive Limits of "Sex" (1993), confronts this issue head on and ends up suggesting a reciprocal relationship between bodies as physical entities and the construction of those bodies in discourse: "Language and materiality are fully embedded in each other, chiasmic in their interdependency, but never fully collapsed into one another, i.
Since the brain is believed to rule the body's motion following a chiasmic structure (as in mirror reflections), there is no possible mobility for a man whose real limbs expect orders from a reflected hemisphere; and for the same reason, the limbs reflected would remain still.