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.

---

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

---

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

---

Etymology

Origin of focal point

First recorded in 1705–15

Example Sentences

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

From The Wall Street Journal • Mar. 25, 2026

Miami tried to impose its game plan early, with several attacks down the right side of the field, and focused on making Messi the focal point of its attack.

From Los Angeles Times • Feb. 22, 2026

Howe's decision to make Gordon the focal point of his attack instead of the misfiring Nick Woltemade paid off after just three minutes.

From Barron's • Feb. 18, 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

Selena’s brother turned back tahis finger, obviously for him the true and only focal point in the room.

From "Nine Stories" by J. D. Salinger

Related Words

• center of attention
• centerpiece