Definition of test pattern in English:

test pattern

Syllabification: test pat·tern

noun

  • A geometric design broadcast by a television station so that viewers can adjust the quality of their reception.
    More example sentences
    • Mr. Benson and Meg sat mesmerized by the test pattern on the television.
    • A couple of those shows would have failed even if they'd only been opposite a test pattern.
    • An announcer uses the ‘remote carrier beam,’ another TV monitor with a test pattern, to bring the captain's ‘special agents into sharp focus.’

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody