goal-line technology
US /ˈɡoʊl.laɪn tekˈnɑː.lə.dʒi/
UK /ˈɡoʊl.laɪn tekˈnɑː.lə.dʒi/

1.
a system used in football (soccer) to determine if the ball has completely crossed the goal line, typically using electronic devices and cameras
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The referee used goal-line technology to confirm the goal.
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The introduction of goal-line technology has reduced controversies in football.
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