screen test

Short definition from Wiktionary

Noun

1. 1
   Used other than figuratively or idiomatically: see screen, test; a test of, or involving, a screen.
2. 2
   A filmed audition to test (and demonstrate) an actor's screen-acting ability and/or suitability for a particular role.
3. 3
   A test for the presence of a particular substance; such a test that by extension tests for a particular organism or medical condition.
4. 4
   Synonym of rough ride.

Verb

1. 1
   To audition via a screen test.
2. 2
   To test for a particular substance, organism or medical condition by means of a screen test.
3. 3
   To subject (someone) to a screen test.