criticalprocess

noun
UK /ˈkrɪtɪkəl ˈprəʊsɛs/
US /ˈkrɪtɪkəl ˈprɑːsɛs/

A very important job that must be done right or things will go wrong.

Keeping the engine cool is a critical process for the car to run safely.


OTHER MEANINGS

2. A step in a computer that must finish before the next step can start.

Saving the file is a critical process before the program closes.

3. A way of thinking carefully about whether something is true or good.

Checking the facts is a critical process for a good report.

4. A job in a factory that must be watched closely so nothing breaks.

Mixing the chemicals is a critical process at the plant.