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focal point
noun
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.
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.
the central or principal point of focus.
focal point
noun
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
a central point of attention or interest
focal point
The point at which all radiation coming from a single direction and passing through a lens or striking a mirror converges.
Also called focus
51Թ History and Origins
Origin of focal point1
Example Sentences
Identity becomes a focal point for someone like that.
“It’s really healthy that their focal point isn’t like the ‘golden era of whenever’ that might have been the ’70s in London or the ’80s in L.A. or any point in between.”
Harvard University has been the focal point of President Donald Trump's ire.
As Wiggins emerged as a top-level cyclist, he became the focal point for what those following the sport hoped would be a new cleaner era.
But he only offered a focal point, not a serious threat.
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Related 51Թs
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