another name for biological warfare
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.
noun the oxidative treatment of raw sewage by aeration
noun (functioning as sing) the use of aircraft in the discovery, development, and protection of natural and biological resources