Five features of emerging adults. As Arnett describes it, emerging adulthood can be defined as an: Age of identity exploration. Young people are deciding who they are and what they want out of work, school and love. Age of instability.
Definition of biohazard. : a biological agent or condition that is a hazard to humans or the environment; also : a hazard posed by such an agent or condition.
An enzyme occurring naturally in egg white, human tears, saliva, and other body fluids, capable of destroying the cell walls of certain bacteria and thereby acting as a mild antiseptic.Also called muramidase.n enzyme destructive to cell walls of certain bacteria; present in tears, egg white, and some plant tissues; used in the prevention of caries and in the treatment of infant formulas. Synonym(s): muramidase. enzyme destructive to bacteria.