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 key question is how much this has damaged the Gulf's reputation as a focal point for global aviation – and whether its model has suffered lasting damage.

From BBC

Bigger parking decks are often a focal point of the action, they said.

From The Wall Street Journal

AFP journalists saw one of the biggest rallies in the capital in years converge on Plaza de Mayo, the city's traditional focal point and home to the Casa Rosada presidential complex.

From Barron's

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

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

Related Words

• center of attention
• centerpiece