Adjective
Pertaining to, or situated near, the calcar of the brain.
Source: Webster's dictionaryFor example, in humans, the upper bank of the calcarine sulcus responds strongly to the lower half of visual field (below the center), and the lower bank of the calcarine to the upper half of visual field. Source: Internet
This is a band of whiter tissue that can be observed with the naked eye in the fundus of the calcarine sulcus of the occipital lobe. Source: Internet