the precautions taken to protect against the spread of lethal or harmful organisms and diseases
terrorist acts involving the use of harmful agents and products of biological origin, as disease-producing microorganisms or toxins. noun the use of living organisms and their toxic products to kill or incapacitate, esp as a political weapon noun n.
biological warfare. noun another name for biological warfare noun
verb (intransitive) (of substances, esp toxins) to build up within the tissues of organisms
any effect on, interaction with, or response from living tissue. adjective (of a substance) having or producing an effect on living tissue bioactive (bī’ō-āk’tĭv) Relating to a substance that has an effect on living tissue.