ALL meanings of focal point
fo·cal point
F f - noun focal point 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
- noun focal point 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. 1
- noun focal point the central or principal point of focus. 1
- noun focal point perspective: where lines converge 1
- noun focal point focus of attention 1
- countable noun focal point The focal point of something is the thing that people concentrate on or pay most attention to. 0
- noun focal point 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 0
- noun focal point a central point of attention or interest 0
- noun focal point the point at which light, sound, etc. are focused 0
- noun focal point any center of activity, attention, etc. 0