sulcation
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
11
Scrabble Score
9
Letters
3
Syllables
9
Unique Chars
Meaning
noun
Markings resembling channels or furrows, especially in shells, fossils, etc.
Countable; Uncountable
Example Sentences
- "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."
- "[T]he presence of sulcation in the brow horns of all the Arrhinoceratops specimens known at the present time suggests a certain constancy in this genus."
- "Lissencephaly refers to a diffusely smooth-surfaced cerebral hemisphere without sulcation."
- "Since the appearance and development of sulci in the fetal brain follows a predictable pattern, the degree of sulcation may be used as an indicator of gestational age-related cortical development, both at autopsy and in vivo with fetal MRI."
- "Gyration and sulcation occur during neuronal migration and continue until after birth."