Germ-free

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Without any (especially harmful) microorganisms; aseptic. not-comparable
  2. 2
    Specifically, pertaining to an animal with no microorganisms living in or on it, used in gnotobiotic research. not-comparable

    "It is worth being cautious: many studies show associations rather than cause and effect, and some are based only on studies in germ-free mice and have not been explored in humans."

Example

More examples

"Alas, as much as I’d like to hide in my germ-free room until my plane arrives, I cannot."

Etymology

From germ + -free.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.