Today's Word of the Day means...
A procedure for critical evaluation; a means of determining the presence, quality, or truth of something; an examination, or experiment.
A physical or chemical change by which a substance may be detected or its properties ascertained.
A reagent used to cause or promote such a change.
To subject to a test; try.
To determine the presence or properties of a substance.
To administer a test.
To exhibit a given characteristic when subjected to a test.