A chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid or hydrochloric acid to produce an aldehyde, which condenses with two molecules of phenol to produce a red or purple compound.

(animation) An early version of an animated scene, consisting of rough sketches that are photographed or scanned.

A diagnostic test for vesicointestinal fistulae, based on observation of a urine sample after a barium enema.

A test to determine whether a non-human animal possesses the ability of self-recognition, carried out by introducing the animal to a mirror, painting a mark on the animal, and observing whether it touches the mark on its own body after seeing it in the mirror image.

A test of the bursting strength of corrugated board under pressure.

A vision test using a Snellen chart.

A screening test done on newborns, involving the collection of blood from a pinprick puncture in the heel.

An informal survey that assesses the participant's supposed degree of innocence in worldly matters, such as sex, drugs, and deceit.

A clinical test used to diagnose injury of the anterior cruciate ligament. The knee is flexed at 20–30 degrees with the patient supine, and the tibia is pulled forward to assess the its anterior motion in comparison with the femur.

(aviation) An aviator who flies new and modified aircraft in specific maneuvers.