canthus: meaning, definition, pronunciation and examples

Very Low
UK/ˈkanθəs/US/ˈkænθəs/

Technical/Scientific

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Quick answer

What does “canthus” mean?

The corner or angle where the upper and lower eyelids meet on either side of the eye.

Audio

Pronunciation

Definition

Meaning and Definition

The corner or angle where the upper and lower eyelids meet on either side of the eye.

In anatomy, it refers specifically to the lateral canthus (outer corner) or medial canthus (inner corner) of the eye. In some contexts, it can refer to the analogous structure in the eyes of animals.

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage.

Connotations

None beyond its technical definition.

Frequency

Equally rare and technical in both varieties.

Grammar

How to Use “canthus” in a Sentence

[adjective] + canthuscanthus + of the + [noun]

Vocabulary

Collocations

strong
lateral canthusmedial canthusinner canthusouter canthus
medium
canthus of the eyeangle of the canthus
weak
at the canthustowards the canthus

Examples

Examples of “canthus” in a Sentence

verb

British English

  • -

American English

  • -

adverb

British English

  • -

American English

  • -

adjective

British English

  • canthal
  • The canthal tendon was repaired.

American English

  • canthal
  • A canthal tilt measurement was taken.

Usage

Meaning in Context

Business

Not used.

Academic

Used in medical, anatomical, ophthalmological, and biological research papers and textbooks.

Everyday

Almost never used. In casual conversation, people refer to the 'corner of the eye'.

Technical

The primary domain of use. Standard terminology in ophthalmology, optometry, surgery, and comparative anatomy.

Vocabulary

Synonyms of “canthus”

Neutral

corner of the eyeangle of the eye

Weak

eye angle

Watch out

Common Mistakes When Using “canthus”

  • Pronouncing it as /ˈkænθʊs/ or /ˈkæntəs/.
  • Using it in a non-anatomical context.
  • Forgetting that it is a countable noun (e.g., 'both canthi').

FAQ

Frequently Asked Questions

No, it is a very low-frequency, technical term used almost exclusively in medicine and biology.

The medial canthus is the inner corner of the eye, closer to the nose. The lateral canthus is the outer corner of the eye.

It would sound very technical and odd. In everyday language, say 'corner of the eye'.

In British English: /ˈkanθəs/ (KAN-thuhs). In American English: /ˈkænθəs/ (KAN-thuhs). The stress is on the first syllable.

The corner or angle where the upper and lower eyelids meet on either side of the eye.

Canthus is usually technical/scientific in register.

Learning

Memory Aids

Mnemonic

Think of 'CAN of THU'S' – imagine opening a can of something near your eye, and you feel a tickle at the corner (canthus) of your eye.

Conceptual Metaphor

The canthus is often a point of measurement or a landmark in clinical descriptions (e.g., 'the tumour extended to the lateral canthus').

Practice

Quiz

Fill in the gap
The lacrimal puncta are located near the medial .
Multiple Choice

What is the 'canthus'?