rus: високосная секунда

Information
has URI	http://lexvo.org/id/term/rus/%D0%B2%D0%B8%D1%81%D0%BE%D0%BA%D0%BE%D1%81%D0%BD%D0%B0%D1%8F%20%D1%81%D0%B5%D0%BA%D1%83%D0%BD%D0%B4%D0%B0

Meaning
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means	(noun) a second (as measured by an atomic clock) added to or subtracted from Greenwich Mean Time in order to compensate for slowing in the Earth's rotation leap second