Definition

Noun: 1. A device for sterilizing; an apparatus that destroys all microorganisms, including bacteria, viruses, and spores, to achieve sterility. This is the primary and most common meaning. A steriliser uses a physical or chemical agent (e.g., steam, dry heat, radiation, or gas) to render objects free from all living organisms. 2. Specifically, a device for heating substances above their boiling point under pressure; an autoclave. This is a more technical definition, referring to a common type of steriliser that uses pressurized steam to achieve high temperatures for sterilization, often used in medical, laboratory, and some industrial contexts.

Usage Examples

• General Use:

  • The baby's bottles were placed in the electric steriliser.
  • All surgical instruments must go through the steriliser before the next operation.
  • Dental clinics use a steriliser to ensure their tools are safe for patients.

• Technical/Specific Use (Autoclave):

  • The laboratory technician loaded the petri dishes into the steam steriliser.
  • This chemical requires preparation in a high-pressure steriliser.

Advanced Usage

• The term is often used in contexts requiring absolute cleanliness and the absence of pathogens, such as medicine, surgery, microbiology, food preparation, and baby care.
• The process performed by a steriliser is sterilization (or sterilisation in British English). The verb is to sterilize (or sterilise).

Variants and Related Words

• Sterilizer: The preferred spelling in American English.
• Autoclave: A specific type of steriliser that uses pressurized steam. Often used synonymously with "steriliser" in medical and scientific contexts.
• Disinfector: A related but distinct device. A disinfectant or disinfector reduces the number of pathogenic microorganisms to a safe level but does not necessarily destroy all microbes or bacterial spores, unlike a steriliser.
• Sanitizer: A device or agent that reduces bacteria to a level considered safe by public health standards, which is a less rigorous standard than sterilization.

Synonyms

• Autoclave
• Disinfector (note: this is a near-synonym with a different standard of efficacy)
• Purifier (in a broad sense, but not technically precise)

Antonyms

• Contaminator
• Infectant

Related Phrases/Compounds

• Steam steriliser: Specifies the method of sterilization.
• UV steriliser: Uses ultraviolet light to destroy microorganisms.
• Cold steriliser: Uses chemical liquids or gases (e.g., glutaraldehyde) instead of heat.
• Portable steriliser: A smaller, often electrically powered device for home or travel use.

Noun

1. a device for heating substances above their boiling point; used to manufacture chemicals or to sterilize surgical instruments