(medicine) Serum levels of alpha-fetoprotein, estriol and beta-human chorionic gonadotropin, used during pregnancy to screen for chromosomal abnormalities and neural tube defects.

A standard test for determining the impact resistance of materials, using a pivoting arm that is released from a specific height to strike a sample.

(metalworking) To test for the general character of a steel, when testing a piece of steel, by grinding it, producing sparks, using color of sparks to determine its general classification.

An instance of spark testing.

(software engineering) A hybrid form of integration testing that combines top-down and bottom-up approaches.

A test for determining the hardness of water by shaking it up with liquid soap (not detergent).

(occupational health and safety) Test of the integrity of the electrical insulation of an appliance or other electrical equipment, by measurement of resistance when a high voltage is applied.

(statistics) A test that assesses constraints on statistical parameters based on the weighted distance between the unrestricted estimate and its hypothesized value under the null hypothesis, where the weight is the precision of the estimate.

plural of test track

(automotive) A paved track on which road vehicles can be tested. / (rail transport) A railway track for the purpose of testing trains.