test (tĕst)

1. A procedure for critical evaluation; a means of determining the presence, quality, or truth of something; an examination, or experiment.
2. A physical or chemical change by which a substance may be detected or its properties ascertained.
3. A reagent used to cause or promote such a change.

1. To subject to a test; try.
2. To determine the presence or properties of a substance.
3. To administer a test.
4. To exhibit a given characteristic when subjected to a test.