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Sterilizer vs Preservative - What's the difference?

sterilizer | preservative |

As a noun sterilizer

is a device used to sterilize, killing pathogens by means such as heat, uv light, chemicals, etc.

As an adjective preservative is

.

sterilizer

English

Noun

(en noun)
  • A device used to sterilize, killing pathogens by means such as heat, UV light, chemicals, etc.
  • :The hospital was in trouble when the sterilizer broke; they almost had to shut down the operating room.

    • preservative

    English

    Noun

    (en noun)
  • (countable) any agent, natural or artificial that acts to preserve, especially when added to food
    • Salt, sugar, and acid all act as preservatives when making pickles.

    Adjective

    (head)
  • tending to preserve
    • The curators took preservative actions to maintain the ancient collection.