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. | earnest and conscientious activity intended to do or accomplish something |
an appraisal of the state of affairs | a purposeful or industrious undertaking (especially one that requires effort or boldness) |
a written report of the results of an analysis of the composition of some substance | |
a substance that is undergoing an analysis of its components | |