focal point

American  

noun

1. Also called principal focus.  Optics. either of two points on the axis of a mirror, lens, or other optical system, one point being such that rays diverging from it are deviated parallel to the axis upon refraction or reflection by the system and the other point being such that rays parallel to the axis of the system converge to the point upon refraction or reflection by the system.

2. the point at which all elements or aspects converge; center of activity or attention.

   The focal point of our discussion was the need for action.

3. the central or principal point of focus.

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focal point British  

noun

1. Also called: principal focus.   focus.  the point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection

2. a central point of attention or interest

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focal point Scientific  

1. The point at which all radiation coming from a single direction and passing through a lens or striking a mirror converges.

2. Also called focus

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Etymology

Origin of focal point

First recorded in 1705–15

Example Sentences

The negotiations remain a focal point for policymakers and economists, setting the benchmark for nonunionized smaller businesses, which employ the vast majority of Japan’s workforce.

From The Wall Street Journal • Mar. 23, 2026

Howe's decision to make Gordon the focal point of his attack instead of the misfiring Nick Woltemade paid off after just three minutes.

From Barron's • Feb. 18, 2026

Long a community focal point, the five-acre park is set to undergo a redesign thanks to a $5-million donation from the Walt Disney Co., and a $5.5-million outlay from California State Parks.

From Los Angeles Times • Feb. 4, 2026

The Social Security Administration’s customer service has been a major focal point this year.

From MarketWatch • Dec. 23, 2025

The library became the focal point of his life.

From "Endgame" by Frank Brady

Related Words

• center of attention
• centerpiece