confocal

UK /kənˈfəʊkəl/ US /kənˈfoʊkəl/

adj 1noun 1

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Definitions

adj

1

Having the same foci

noun

1

Any of a pair of confocal mirrors or lenses

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01

The readiest support for planets' having confocal orbits is their sometimes retrograde motion.

Tatoeba · #2055601

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