a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc. | strenuous effort |
an appraisal of the state of affairs | an energetic attempt to achieve something |
a written report of the results of an analysis of the composition of some substance | an open clash between two opposing groups (or individuals) |
a substance that is undergoing an analysis of its components | |