a device that produces a narrow and powerful stream of light that has many special uses in medicine, industry, etc.
doctors using a laser to perform delicate eye surgery
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Recent Examples of lasersChasing dark matter The team’s early experiments suffered from poor measurement precision, largely due to interference from the very lasers used to trap the atoms.—Georgina Jedikovska, Interesting Engineering, 4 Apr. 2026 Fortunately, there’s no shortage of hair loss treatment options today, from prescription medications and over-the-counter supplements to topical shampoos and serums and high-tech lasers.—Rebecca Strong, USA Today, 3 Apr. 2026 That likely means using lasers to beam data between satellites.—Geoff Brumfiel, NPR, 3 Apr. 2026 Paradises fades the lasers and the fog machines, to better see that afternoon light angling through the trees.—Jesse Dorris, Pitchfork, 2 Apr. 2026 There are lasers conducting a separate measurement, to compare to the hand measurement.—Sam Blum, New York Times, 30 Mar. 2026 The minerals and elements are found in the Earth’s crust and are used in hundreds of products including smartphones, laptops, lasers, medical devices and electric vehicles.—Dipka Bhambhani, Forbes, 14 Mar. 2025 By harnessing the power of lasers, artificial intelligence and advanced robotics, the G2 offers an alternative to traditional herbicides and labor-intensive manual weeding.—Kurt Knutsson, Cyberguy Report, Fox News, 12 Mar. 2025 This is because these lasers have a broader range of wavelengths, or energy levels.—Brigitt Earley, Glamour, 10 Mar. 2025
Situated at the summit of Mount Davidson, the historic 103-foot-tall cross will be illuminated by spotlights beginning Saturday evening.
—
Anne Schrager,
San Francisco Chronicle,
27 Mar. 2026
Hardened violators often pitch out their firearms, spotlights, and other equipment used in breaking the law, know-ing that wardens must present such evidence in court to get a conviction.
Throughout the property, the original building's bones— beams, tiles, pillars, and window frames—were gently restored to show their age and patina, not conceal it.
—
Condé Nast,
Condé Nast Traveler,
3 Apr. 2026
When these rapidly spinning neutron stars blast out radiation from their poles, that radiation sweeps across the cosmos like beams of light from a cosmic lighthouse.