hippus: meaning, definition, pronunciation and examples
Very LowTechnical/Medical
Quick answer
What does “hippus” mean?
A spasmodic, rhythmic contraction and dilation of the pupil of the eye.
Audio
Pronunciation
Definition
Meaning and Definition
A spasmodic, rhythmic contraction and dilation of the pupil of the eye.
A medical sign referring specifically to abnormal, involuntary oscillatory movements of the pupil that occur independently of changes in light.
Dialectal Variation
British vs American Usage
Differences
No difference in meaning or usage. Spelling is identical. The term belongs to the international medical lexicon.
Connotations
Solely a clinical descriptor. No cultural or regional connotations.
Frequency
Extremely rare outside ophthalmology and neurology texts or discussions in both varieties.
Grammar
How to Use “hippus” in a Sentence
The patient exhibited pupillary hippus.Hippus was noted upon examination.The neurologist documented the presence of hippus.Vocabulary
Collocations
Examples
Examples of “hippus” in a Sentence
adjective
British English
- The hippic movements were subtle.
- A hippic pupil was documented.
American English
- The hippic movements were subtle.
- A hippic pupil was documented.
Usage
Meaning in Context
Business
Not used.
Academic
Used exclusively in advanced medical/neuroscience research papers and textbooks.
Everyday
Never used.
Technical
Primary context. Used in clinical notes, specialist reports, and differential diagnoses in neurology/ophthalmology.
Vocabulary
Synonyms of “hippus”
Strong
Neutral
Weak
Vocabulary
Antonyms of “hippus”
Watch out
Common Mistakes When Using “hippus”
- Misspelling as 'hippos' or 'hypus'.
- Using it as a general term for any eye movement.
- Pronouncing it with a long 'i' (like 'high-pus').
FAQ
Frequently Asked Questions
No, hippus is a clinical sign or symptom, not a disease itself. It can indicate an underlying neurological condition or be a benign physiological variant.
Sometimes, if pronounced, it may be observable. However, it is often subtle and best detected during a detailed clinical examination with appropriate lighting.
Causes range from normal fatigue of the pupillary light reflex (physiological) to pathologies affecting the autonomic nervous system, midbrain, or conditions like multiple sclerosis.
Absolutely not. It is a highly specialised medical term unknown to the general public and rarely used even by doctors outside specific specialities like neurology or ophthalmology.
A spasmodic, rhythmic contraction and dilation of the pupil of the eye.
Hippus is usually technical/medical in register.
Hippus: in British English it is pronounced /ˈhɪpəs/, and in American English it is pronounced /ˈhɪpəs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a 'hippo' (hippus) with eyes that rhythmically wobble open and shut.
Conceptual Metaphor
The pupil 'dances' or 'pulsates' erratically.
Practice
Quiz
In which professional context would you most likely encounter the term 'hippus'?