# sterilization

/ˌstɛɹəɫəˈzeɪʃən/ (US) · CEFR C1 · Noun

Source: https://englishreference.com/word/sterilization
Updated: 2026-05-08

## Definition

the process of making something completely clean by killing all bacteria and germs. It can also mean a medical operation that makes a person or animal unable to have babies.

For teachers: the process of making an object or environment free from all living microorganisms, typically through heat, chemicals, or radiation. In a biological context, it refers to any procedure that renders an individual incapable of reproduction.

## Examples

- The nurse checked the sterilization of the surgical tools.
- Proper sterilization of medical equipment is essential to prevent the spread of infection during surgery.
- The hospital implemented a rigorous protocol for the sterilization of all reusable instruments, utilizing high-pressure steam to ensure the total elimination of pathogens.

## Usage notes

- Uncountable when referring to the general process; can be countable when referring to specific medical procedures.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.