What does aspirator mean?
An aspirator is a mechanical device that removes fluids, gases, or small particles from a space by generating suction. In medicine and dentistry, aspirators are indispensable: surgeons use them to keep incision sites free of blood, dentists rely on them to clear saliva and water from the mouth during treatment, and parents use handheld nasal aspirators to relieve congestion in infants. Beyond healthcare, the term also applies to laboratory equipment — such as the traditional water aspirator that creates a vacuum for filtering — and to industrial tools that extract dust or debris. The word derives from the Latin aspirare, 'to breathe toward,' reflecting the way these devices literally draw air or liquid outward. Though technical in register, aspirator is a practical term worth knowing, as its devices appear everywhere from operating theatres to nurseries and workbenches.
nounA device that draws out fluid, gas, or foreign material from a body cavity or container by suction; in medicine and dentistry, it commonly removes saliva, blood, or debris during procedures.
- A medical or dental instrument that removes fluids, mucus, or debris by suction (e.g. a nasal aspirator used on infants).
- A laboratory or industrial device that produces suction or negative pressure, often using a stream of water or air.
"The dentist used an aspirator to keep the patient's mouth clear of saliva throughout the procedure."
"The nurse gently cleared the newborn's congested nose with a nasal aspirator."
"In the chemistry lab, a water aspirator provided the vacuum needed for the filtration setup."
Standard plural; used when referring to multiple devices or models.
"The clinic stocks several types of nasal aspirators for newborn care."
The word 'aspirator' shares its root with the English word 'inspire' — both come from the Latin aspirare, meaning to breathe toward or blow upon — so every time you breathe in, you're using your own built-in aspirator.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of aspirator
Aspirator comes from the Latin verb aspirare, formed from ad- ('toward') plus spirare ('to breathe'), originally meaning to breathe toward or blow upon. The noun was formed in modern scientific Latin and entered English usage alongside other breathing- and suction-related terms such as aspirate and respirator. Its cognates include respiration and inspiration, all sharing the same root spirare, which itself gave English words like spirit and expire through related derivations.
How aspirator is actually used
Aspirator is a technical term found mainly in medical, dental, laboratory, and engineering contexts; it is rarely used in casual conversation except when referring to infant nasal aspirators sold over the counter.
Easily confused with aspirator
Aspirin is a pain-relieving drug derived from salicylates, while an aspirator is a suction device that removes fluid or material.
A respirator assists breathing or filters air entering the lungs, whereas an aspirator extracts fluids or particles by creating suction.