English

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Etymology

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From con- +‎ focal.

Adjective

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confocal (not comparable)

  1. (optics, mathematics) Having the same foci

Derived terms

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Translations

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Noun

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confocal (plural confocals)

  1. Any of a pair of confocal mirrors or lenses

Portuguese

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Adjective

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confocal m or f (plural confocais)

  1. (optics, mathematics) confocal (having the same foci)

Spanish

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Adjective

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confocal m or f (masculine and feminine plural confocales)

  1. confocal