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Sulcation

noun

Definitions

Noun
  1. 1
    A channel or furrow. countable, uncountable
  2. 2
    Markings resembling channels or furrows, especially in shells, fossils, etc. countable, uncountable

    "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."

  3. 3
    The development of or resulting formations of sulci in a brain cortex. countable, uncountable

    "Lissencephaly refers to a diffusely smooth-surfaced cerebral hemisphere without sulcation."

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