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

In the Political Thinking interview, Streeting was also asked about his position on Brexit, which was a focal point of a speech he gave last weekend.

From BBC • May 21, 2026

The other focal point is a rebel-held city largely cut off from government resources.

From The Wall Street Journal • May 19, 2026

Greater bond market volatility could tighten funding markets, which has been a focal point of past financial turmoil.

From Barron's • Apr. 14, 2026

Earnings season has also become a focal point, as quarterly results dominate headlines and investors tend to make trading decisions based on short-term news.

From MarketWatch • Apr. 7, 2026

He said he needed a focal point to get the church geared up.

From "The Poisonwood Bible" by Barbara Kingsolver

Related Words

• center of attention
• centerpiece