optical

adjective

op·ti·cal | \ ˈäp-ti-kəl

Definition of optical

1 : of or relating to the science of optics

2a : of or relating to vision : visual

b : visible sense 1 optical wavelength

c : of, relating to, or being objects that emit light in the visible range of frequencies an optical galaxy

d : using the properties of light to aid vision an optical instrument

3a : of, relating to, or utilizing light especially instead of other forms of energy optical microscopy

b : involving the use of light-sensitive devices to acquire information for a computer optical character recognition

4 : of or relating to optical art

Other Words from optical Synonyms & Antonyms More Example Sentences Learn More about optical

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Synonyms & Antonyms for optical

Synonyms

ocular, optic, visual

Antonyms

nonvisual

Examples of optical in a Sentence

The company manufactures microscopes, telescopes, and other optical instruments. an optical illusion that fools most people

Recent Examples on the Web

The facilities have also increasingly installed optical scanners, computers that can quickly scan and identify different grades of plastic and send them to the right bin. — Devin Kelly, Anchorage Daily News, "How recycling works in Anchorage: Most of it ends up in the Lower 48," 7 June 2019 Nikon‘s device has a ridiculously strong optical zoom – 3000mm – along with 4K ultra HD video recording. — Chris Morris, Fortune, "6 Great Gifts Ideas for Dad on Father's Day," 5 June 2019 Many marine animals respond audibly or visibly to sound, optical, electromagnetic and chemical shifts in the water around them. — Allie Wilkinson, Scientific American, "Military Tries Out Fish as Underwater Spies," 29 Mar. 2019 Previously, testing the RemoveDEBRIS system has meant checking out its fundamentals—using a net to simulate a capture, using onboard LIDAR and optical camera systems to identify space junk. — David Grossman, Popular Mechanics, "Watch a Space Junk Harpoon Complete a Successful Test Shot," 15 Feb. 2019 Beyond that, the Command Bar comes with a nice variety of connectivity options: an HDMI-ARC port, two HDMI 2.0 inputs, an optical digital audio input, and Bluetooth support. — Jeff Dunn, Ars Technica, "The Ars Holiday Gift Guide 2018—good tech for the home and home office," 19 Nov. 2018 The Galaxy Note 9, similar to this year’s Galaxy S9, has impressive dual cameras on the back, a wide-angle and a 2X telephoto, both with optical image stabilization. — David Pierce, WSJ, "Samsung’s Galaxy Note 9 Is Crazy Powerful. Can You Handle It?," 19 Aug. 2018 Note that this particular model only accepts analog RCA and 3.5mm audio connections, however—optical inputs aren’t supported. — Alexandria Haslam, PCWorld, "Punch up your PC audio! Logitech's powerful Z623 speaker system is $80, its lowest price ever," 9 Aug. 2018 As in standard optical communications, a photon can be transmitted to a receiver—in this case, another diamond vacancy—and its quantum state transferred to a new electron, so the two electrons become correlated. — Neil Savage, Scientific American, "What Are the Limits of Manipulating Nature?," 8 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'optical.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.