(psychology) A method of psychological evaluation that uses a person's interpretations of inkblots or similar images to discover information concerning his or her personality, emotional functioning, or unconscious mind.

(statistics) Ellipsis of Student's t test.

(statistics) Ellipsis of Student's t-test.

(advertising) A method of market research that predicts in-market performance of an advertisement before it airs.

Any test done as practice, before an official test.

(idiomatic) To explore or probe, as before making a commitment.

fluorine dating

A sample driving session in a motor vehicle, in order to assess its quality before purchase. / (figuratively) Any preliminary assessment of something through use.

To take a motor vehicle on the road to assess its quality before purchase. / (figuratively) To make a preliminary assessment of something through its use.

(chemistry) A simple test for the acidity or alkalinity of a substance, using litmus paper.