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Sulcus (Latin for "furrow"; pl. sulci) may refer to:

• Sulcus primigenius, the sacred furrow created at the foundation of Roman cities in antiquity
• Gingival sulcus, the space between a tooth and surrounding tissue
• Gluteal sulcus, the horizontal crease in humans and certain other primates where the lower end of the buttocks join the thigh
• Sulcus (morphology), a groove, crevice or furrow in medicine, botany, and zoology
• Sulcus (neuroanatomy), a crevice on the surface of the brain
• Sulcus (geology), a long parallel groove on a planet or a moon
• Coronal sulcus, the groove under the corona of the glans penis
• In botany, sulci in seeds or pollen grains are colpi

See also

• All pages with titles containing sulcus
• Sulci, an ancient town in southwest Sardinia notable for the Battle of Sulci in 258 BC
• Sulcalization, a term in phonetics and phonology
• Gyrification

• Disambiguation pages