Definition of abiotic in US English:



  • 1Physical rather than biological; not derived from living organisms.

    ‘abiotic chemical reactions’
    • ‘Water is obviously a crucial and highly variable abiotic factor for every living organism.’
    • ‘Ecosystems are functional units of interacting abiotic, biotic, and cultural components.’
    • ‘Reactive oxygen species are generated under various biotic and abiotic stresses, and trigger cell death.’
    • ‘This is distinct from the notion of selection deriving from pressures exerted by the biotic and abiotic environment inhabited by the organism.’
    • ‘If abiotic and biotic stresses inhibit proper root function, plants run into nutrient deficiencies.’
    • ‘Development of models of intraspecific body size variation incorporating abiotic and biotic factors would be useful.’
    • ‘In addition, there is growing recognition of abiotic organic synthesis in various geological materials.’
    • ‘Living organisms function in the context of the abiotic and biotic worlds.’
    • ‘Perturbations of photosynthetic metabolism can be induced by many biotic and abiotic factors.’
    • ‘For insects on plants, demes may evolve in response to local abiotic features, rather than to the natal host plant.’
    lifeless, insentient, insensate, without life, inert, motionless
    View synonyms
    1. 1.1 Devoid of life; sterile.
      ‘soils are seldom completely abiotic’
      • ‘We know certain principles, which can be proven experimentally, to be universal, from the standpoint of the assumption that the universe was abiotic - not a living universe.’
      • ‘As you know, the planet was originally considered to be abiotic, by some people.’
      • ‘There is no reason to declare that Mars has been abiotic throughout its history.’
      • ‘The study shows that the situation is still much the same 100 years later, with the estuary being identified as the only abiotic area in 2003.’