Definitions

1. noun

Crossings or intersections of chromatid pairs in meiosis that result in exchange of genetic material.

“The geneticist studied the chiasmata during the meiosis process to understand how genetic diversity is created.”

2. noun

A figure of speech in which ideas or words are repeated in reverse order, often for rhetorical effect.

“The poet used a chiasmus in her poem to emphasize the contrasting ideas of freedom and oppression.”