sulcation

noun

A channel or furrow. / Markings resembling channels or furrows, especially in shells, fossils, etc. / (neuroscience) The development of or resulting formations of sulci in a brain cortex.

The sulcation on the surface of the brain helps to increase its surface area.

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詳細

意味（1）

A channel or furrow.

意味（2）

Markings resembling channels or furrows, especially in shells, fossils, etc.

The ornamentation of the shell is a character of considerable palaeontological importance. . . . The types of ornamentation are two; longitudinal striation, and transverse sulcation conformable to the shape of the aperture.

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