Internal & external audits: first-, second-, and third-party audits. 1  A first-party audit is performed within an organization to measure its strengths and weaknesses against its own procedures or methods and/or against external standards adopted by (voluntary) or imposed on (mandatory) the organization.
Precursor (chemistry) In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound. In biochemistry, the term precursor often refers more specifically to a chemical compound preceding another in a metabolic pathway, such as a protein precursor. 1 Illicit drug precursors.
7 Synonyms found for precursor. precursor 1504, from L. prÃ¦cursor forerunner, from prÃ¦cursus, pp. of prÃ¦currere, from prÃ¦- before + currere to run (see current). A beam fell from the roof to the floor, precursor of the rest.