1. A reference to the absence, or deficiency, of life: Is there such a thing as the abiotic existence of matter that is devoid of life or any specific life conditions?

Characterized by the absence of life, inanimate; such as, sand, gravel, stones, etc. all of which are abiotic.

2. Relating to, or caused by, nonliving environmental factors: Many of the abiotic conditions are destructive of living organisms; including temperature, water, soil, pH, and salinity.