focal

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Pronunciation

• (RP) IPA: /ˈfəʊ.kl̩/
• (America) IPA: /ˈfoʊ.kl̩/

Adjective

focal (not comparable)

1. Belonging to, concerning, or located at a focus
2. (medicine) limited to a small area

Translations

• German: fokal
• Italian: focale
• Russian: фокусный
• Spanish: focal

Translations

• French: focal
• Italian: focale
• Portuguese: focal
• Russian: очаговый
• Spanish: focal

Noun

focal (plural focals)

1. • 1877, James Booth, A Treatise on Some New Geometrical Methods (page 209)

     Again, if the plane of the impressed couple intersects the mean plane between N and C, it will envelope the cone whose focals are ON, ON′, and whose internal axis is therefore OA.

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