FOCAL

focal

(adjective) having or localized centrally at a focus; “focal point”; “focal infection”

focal

(adjective) of or relating to a focus; “focal length”

Source: WordNet® 3.1


Etymology

Adjective

focal (not comparable)

Belonging to, concerning, or located at a focus

(medicine) limited to a small area

Noun

focal (plural focals)

(geometry, obsolete)

Source: Wiktionary


Fo"cal, a. Etym: [Cf.F. focal. See Focus.]

Definition: Belonging to,or concerning, a focus; as, a focal point. Focal distance, or length,of a lens or mirror (Opt.), the distance of the focus from the surface of the lens or mirror, or more exactly, in the case of a lens, from its optical center. --Focal distance of a telescope, the distance of the image of an object from the object glass.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

27 May 2025

DIRECTIONALITY

(noun) the property of being directional or maintaining a direction; “the directionality of written English is from left to right”


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Coffee Trivia

According to Guinness World Records, the largest coffee shop is the Al Masaa Café, which has 1,050 seats. The coffee shop was inaugurated in Riyadh, Saudi Arabia, on 13 August 2014.

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