1. To make sterile or unproductive; to impoverish, as land; to exhaust of fertility. Sterilizing the earth.
2. (Science: biology) To deprive of the power of reproducing; to render incapable of germination or fecundation; to make sterile. To destroy all spores or germs in (an organic fluid or mixture), as by heat, so as to prevent the development of bacterial or other organisms.
Origin: Cf. F. Steriliser.