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Definition

adjective

Nonliving, as in abiotic factor, which is a nonliving physical and chemical attribute of a system, for example light, temperature, wind patterns, rocks, soil, pH, pressure, etc. in an environment.

Supplement

Word origin: a- meaning “not,” “without” + biotic: Gk biōtikós of, pertaining to life.

Related forms: abiosis (noun), abiotically (adjective).
Related phrases: abiotic factor, abiotic stress.

Compare: biotic.