Find the word definition

Wiktionary
uncinate fasciculus

n. (context anatomy English) A tract of white matter in the human brain that connects limbic and frontal parts.

Wikipedia
Uncinate fasciculus

The uncinate fasciculus is a white matter tract in the human brain that connects parts of the limbic system such as the hippocampus and amygdala in the temporal lobe with frontal ones such as the orbitofrontal cortex. Its function is unknown though it is affected in several psychiatric conditions. It is the last white matter tract to mature in the human brain.