collateral sulcus

noun
variants: also collateral fissure

Medical Definition of collateral sulcus

: a sulcus of the tentorial surface of the cerebrum lying below and external to the calcarine sulcus and causing an elevation on the floor of the lateral ventricle between the hippocampi

Learn More about collateral sulcus

Cite this Entry

“Collateral sulcus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/collateral%20sulcus. Accessed 26 Nov. 2020.

Comments on collateral sulcus

What made you want to look up collateral sulcus? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!