pus: meaning, definition, pronunciation and examples

low
UK/pʌs/US/pʌs/

clinical, medical, informal (when discussing injuries/illness)

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Quick answer

What does “pus” mean?

A thick, yellowish or greenish opaque liquid produced in infected tissue, consisting of dead white blood cells, bacteria, and tissue debris.

Audio

Pronunciation

Definition

Meaning and Definition

A thick, yellowish or greenish opaque liquid produced in infected tissue, consisting of dead white blood cells, bacteria, and tissue debris.

Metaphorically used to denote something corrupt, foul, or morally repugnant.

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage. Spelling and pronunciation are identical.

Connotations

Equally unpleasant and medical in both varieties.

Frequency

Equally low-frequency in general discourse, common in medical contexts.

Grammar

How to Use “pus” in a Sentence

The wound VERB pus (e.g., oozed, discharged, secreted).There was pus PREP the injury (e.g., in, coming from).

Vocabulary

Collocations

strong
drain pusooze puspus-filleddischarge pus
medium
yellow pusthick pusgreen pusaccumulation of pus
weak
some puspus frompus in the wound

Usage

Meaning in Context

Business

Not used.

Academic

Common in medical, biological, and healthcare texts.

Everyday

Used when describing a bad wound, boil, or abscess in non-technical terms.

Technical

Core term in pathology, dermatology, and general medicine.

Vocabulary

Synonyms of “pus”

Strong

purulenceichor (archaic/poetic)

Vocabulary

Antonyms of “pus”

clear fluidserous exudatehealthy tissue

Watch out

Common Mistakes When Using “pus”

  • Using as a countable noun (*'two puses'). It is uncountable.
  • Misspelling as 'puss' (which means a cat).

FAQ

Frequently Asked Questions

Yes, it is a standard clinical term used in medicine and healthcare, though it is also understandable in everyday language.

No. The related verb for the process of forming pus is 'suppurate'.

'Pus' is the infected fluid. 'Puss' (pronounced /pʊs/) is an informal, often affectionate, term for a cat.

No, 'pus' is an uncountable (mass) noun. You cannot have 'a pus' or 'two puses'. Instead, use phrases like 'some pus', 'a drop of pus', or 'an amount of pus'.

A thick, yellowish or greenish opaque liquid produced in infected tissue, consisting of dead white blood cells, bacteria, and tissue debris.

Pus: in British English it is pronounced /pʌs/, and in American English it is pronounced /pʌs/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • Where there's pus, there's infection.

Learning

Memory Aids

Mnemonic

Think of a PUS-filled blister that makes you say "P-U!" (an exclamation for something smelly).

Conceptual Metaphor

CORRUPTION IS PUS (e.g., 'the pus of scandal infected the whole administration').

Practice

Quiz

Fill in the gap
If the wound starts to pus, it's a clear sign of infection and requires medical attention.
Multiple Choice

What is the primary constituent of pus?