Potentially Infectious Biomedical Waste includes, but is not limited to the following: 1  Cultures and stocks of infectious agents and associated biologicals, including cultures from medical and pathological laboratories, from research and industrial laboratories.
1 (biology) During meiosis, the separation of chromosomes (homologous in meiosis I, and sister chromatids in meiosis II). ( 2 in mathematics): conjunction. ( 3 in mathematics): logical connective. ( in logic): inclusive disjunction.
Disjunction (or as it is sometimes called, alternation) is a connective which forms compound propositions which are false only if both statements (disjuncts) are false. The connective or in English is quite different from disjunction. Or in English has two quite distinctly different senses.