What does purulent mean?
Purulent is a formal adjective meaning that something contains pus, the thick fluid produced by inflammation or infection. Doctors use it to describe wounds, infections, and discharges that are suppurating, or producing pus. The word can also be used figuratively to portray corruption or moral decay as spreading through a person or institution. Although the literal medical sense is specialized, “purulent” comes from the Latin word for pus and is closely related to vocabulary such as pustule and suppurate. In general writing, it is more expressive and less neutral than “pus-filled,” while its figurative sense is often deliberately dramatic. The term is understood in both British and American English, though it is principally encountered in medical and formal contexts.
adjectiveContaining or consisting of pus; suppurating or accompanied by the formation of pus. The word is chiefly used in medical contexts.
- Containing or consisting of pus; suppurating.
- Used figuratively to describe something offensive, corrupt, or morally unhealthy.
"The doctor drained the purulent wound and applied a clean dressing."
"The patient had a purulent infection in the wound."
"The newspaper described the corruption in the organization as a purulent influence on public life."
Purulent is the clinical word for what people commonly call “pus-filled” — a useful reminder that descriptive medical terms often come from Latin roots.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of purulent
The adjective comes through English from Latin purulentus, meaning “full of pus” or “suppurating.” The Latin word is derived from pus, the fluid associated with infection, and is related to pustule, a small raised area of pus, as well as to the English verb suppurate. The modern medical sense developed from this Latin medical vocabulary and remains the word’s dominant use.
Related word forms
How purulent is actually used
In medicine, the term is formal and describes an accumulation or discharge of pus. Its figurative use is more rhetorical and conveys persistent decay or corruption.
Easily confused with purulent
“Purulent” means containing or producing pus, whereas “purplish” means having a slight purple colour.