sulcus

noun

Simple meaning

Any of the narrow grooves in an organ or tissue usually those that mark the convolutions on the surface of the brain.

Pronunciation

Say it like this:

suhlkuhs

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US device voice

IPA pronunciation (US)

ˈsʌlkəs

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

anatomy
Any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain
anatomy
A furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface of the brain.
planetology
A region of subparallel grooves or ditches formed by a geological process.

Word at a Glance

Frequency: Rare
Typical Use: Varies by meaning

Common Patterns and Combinations

How this word naturally appears with others.

lateral sulcusgingival sulcuscoronary sulcustemporal sulcusmedian sulcussuperior sulcusbuccal sulcusdeep sulcus

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

sulcus centralisnounCompound term
A brain fissure extending upward on the lateral surface of both hemispheres.
sulcus lateralis cerebrinounCompound term
The deepest and most prominent of the cortical fissures.
central sulcusnounCompound term
A brain fissure extending upward on the lateral surface of both hemispheres.
lateral cerebral sulcusnounCompound term
The deepest and most prominent of the cortical fissures.
calcarine sulcusnounCompound term
A sulcus in the mesial surface of the occipital lobe of the cerebrum.
parieto-occipital sulcusnounCompound term
A sulcus near the posterior end of each hemisphere that separates the parietal lobes and the occipital lobes in both hemispheres.

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.