test card
Jump to navigation
Jump to search
See also: testcard
English[edit]
Noun[edit]
test card (plural test cards)
- (optometry) A card printed with various letters or symbols, used in testing vision.
- Synonym: Snellen chart
- (UK, television) A test signal, typically broadcast at times when the transmitter is active but no programme is being broadcast (often at startup and closedown).
- Synonym: test pattern
Translations[edit]
vision test card
|
broadcast test signal
|