focal point
Americannoun
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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.
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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.
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the central or principal point of focus.
noun
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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
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a central point of attention or interest
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The point at which all radiation coming from a single direction and passing through a lens or striking a mirror converges.
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Also called focus
Etymology
Origin of focal point
First recorded in 1705–15
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
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
The piñata functions as a focal point into the scene as a whole, and alludes to one of the biggest gathering cultures in L.A., a very joyous scene of celebration.
From Los Angeles Times • Mar. 13, 2026
“The main house unfolds around a central landscaped courtyard, a lovely focal point that brings light and flow to the interiors,” the description goes on.
From MarketWatch • Jan. 13, 2026
Protest action was more subdued Friday with some 20 people gathering at a federal facility that has become a focal point of anti-ICE demonstrations.
From Barron's • Jan. 9, 2026
Just behind that was the focal point of the entire church: a steel two-pronged fork similar to the one on the roof outside.
From "Scythe" by Neal Shusterman
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.