Definition of cruciate sulcus in English:

cruciate sulcus

noun

Zoology
  • (In the brains of some mammals, especially carnivores) a major fissure which begins on the medial anterior surface of the cerebral cortex, and is considered homologous with the Rolandic fissure of primates.

Origin

Late 19th century; earliest use found in James Ross (1837–1892), physician.