lens

noun
\ˈlenz \

Definition of lens 

(Entry 1 of 3)

1a : a piece of transparent material (such as glass) that has two opposite regular surfaces either both curved or one curved and the other plane and that is used either singly or combined in an optical instrument for forming an image by focusing rays of light

b : a combination of two or more simple lenses

c : a piece of glass or plastic used (as in safety goggles or sunglasses) to protect the eye

2 : a device for directing or focusing radiation other than light (such as sound waves, radio microwaves, or electrons)

3 : something shaped like a biconvex optical lens lens of sandstone

4 : a highly transparent biconvex lens-shaped or nearly spherical body in the eye that focuses light rays (as upon the retina) — see eye illustration

5 : something that facilitates and influences perception, comprehension, or evaluation viewing the current legal battle … through partisan lensesNew Republic

lens

verb
lensed; lensing; lenses

Definition of lens (Entry 2 of 3)

transitive verb

: to make a motion picture of : film

Lens

geographical name
\ˈläⁿs \

Definition of Lens (Entry 3 of 3)

commune in northern France southwest of Lille population 35,032

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Other Words from lens

Noun

lensed \ ˈlenzd \ adjective
lensless \ ˈlenz-​ləs \ adjective

Examples of lens in a Sentence

Noun

Make sure the lens of the microscope is clean.

Recent Examples on the Web: Noun

Consider a smart contact lens that is injected directly into the eyeball—a concept that has already been patented and is in active development. Andrea M. Matwyshyn, WSJ, "The ‘Internet of Bodies’ Is Here. Are Courts and Regulators Ready?," 12 Nov. 2018 Sales were driven by Acuvue contact lenses, surgical implements and wound-closure products. Linda A. Johnson, The Seattle Times, "Prescription drugs, lower taxes, power J&J 3Q beat," 16 Oct. 2018 Contact lenses Airplanes are notoriously dry environments, boasting minimal humidity. Micaela English, Town & Country, "19 Things You Should Never Wear While Traveling," 1 Oct. 2018 Laser surgery to correct vision is not enhancement, but a contact lens that enables 4x zooming would be. Joe Pappalardo, Popular Mechanics, "Short-Term Superhuman: If We Create Augmented Soldiers, Can We Turn Them Back?," 25 Sep. 2018 Over the past seven years, cases of an infection of the cornea, called Acanthamoeba keratitis, have nearly tripled among people who wear contact lenses in southeast England, CNN reports. Bartie Scott, Teen Vogue, "A Rare Eye Infection Is Spreading Among Contact Lens Wearers in the U.K.," 21 Sep. 2018 People who wear contact lenses are more likely to contract the infection. Jennifer Earl, Fox News, "Pennsylvania woman says contact lens caused rare infection that led to 'stabbing' pain, possible blindness," 30 Aug. 2018 The company is known for liquid products such as contact lens solutions and artificial tears. Gordon Dickson, star-telegram, "No need to shed tears yet. Alcon promises to stay in Fort Worth after spinoff," 9 July 2018 To help keep track of what's going on, the government offers participants weird-looking contact lenses, which help officials see what's going on and keep track. Bill Goodykoontz, azcentral, "'The First Purge:' Interesting ideas drown in a bloodbath," 4 July 2018

Recent Examples on the Web: Verb

Hadid noted that shooting this calendar was much different than her first time appearing in Pirelli's 2015 calendar lensed by Steven Meisel. Chrissy Rutherford, Harper's BAZAAR, "Gigi Hadid Talks Success and Loneliness for the 2019 Pirelli Calendar," 26 July 2018 Andreas Laszlo Konrath will lens the endeavor, which will star Camille Rowe alongside Carmelo Anthony, photographer Glen Luchford, and tattoo artist Alex McWatt. Julie Kosin, Harper's BAZAAR, "Prince George Cheers on William at Father's Day Polo Match," 16 June 2014 However, what's really caught our eye is the fact that the empowering images lensed by Mayan Toledano show Lourdes unapologetically flaunting her armpit hair. Kristin Corpuz, Teen Vogue, "Lourdes Leon Shows Off Body Hair In New Converse x MadeMe Campaign," 21 May 2018 Richard Avedon lensed her five Vogue covers, in all of which the model is heavily accessorized with big jewelry and, in one case, a silver tinsel wig. Vogue, "Catching Up With Renée Toft Simonsen, “Face of the ’80s” Modeling Contest Winner and 5-Time Vogue Cover Girl," 13 Apr. 2018 The crux of the hunt for the first stars is looking for stars that have been gravitationally lensed. David Grossman, Popular Mechanics, "The James Webb Telescope Could Find the Very First Stars," 25 Apr. 2018 Barton Perreira Carnaby 55 Champagne with Lavender Mirror lenses sunglasses. Melissa Magsaysay, latimes.com, "Make a strong personal statement with these bold sunglasses for spring," 5 Apr. 2018 In February, researchers also announced that lensing helped them find possible signs of planets outside our own galaxy. Jason Daley, Smithsonian, "Meet Icarus, The Most Distant Star Yet Detected," 3 Apr. 2018 Among the movie’s charms are Diehl’s cheerful and contact-lensed face, and the pleasant mishmash of French, German, and English that the cast speak. Josephine Livingstone, The New Republic, "Karl Marx Has a Hangover," 2 Mar. 2018

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

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First Known Use of lens

Noun

1673, in the meaning defined at sense 1a

Verb

1942, in the meaning defined above

History and Etymology for lens

Noun

New Latin lent-, lens, from Latin, lentil; from its shape

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Dictionary Entries near lens

lennow

leno

Le Nôtre

lens

Lens

lensatic compass

lens board

Statistics for lens

Last Updated

17 Nov 2018

Look-up Popularity

Time Traveler for lens

The first known use of lens was in 1673

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More Definitions for lens

lens

noun

English Language Learners Definition of lens

: a clear curved piece of glass or plastic that is used in eyeglasses, cameras, telescopes, etc., to make things look clearer, smaller, or bigger

: the clear part of the eye that focuses light to form clear images

lens

noun
\ˈlenz \

Kids Definition of lens

1 : a clear curved piece of material (as glass) used to bend the rays of light to form an image

2 : a clear part of the eye behind the pupil and iris that focuses rays of light on the retina to form clear images

lens

noun
variants: also lense \ ˈlenz \

Medical Definition of lens 

1 : a curved piece of glass or plastic used singly or combined in eyeglasses or an optical instrument (as a microscope) for forming an image by focusing rays of light

2 : a device for directing or focusing radiation other than light (as sound waves, radio microwaves, or electrons)

3 : a highly transparent biconvex lens-shaped or nearly spherical body in the eye that focuses light rays entering the eye typically onto the retina, lies immediately behind the pupil, is made up of slender curved rod-shaped ectodermal cells in concentric lamellae surrounded by a tenuous mesoblastic capsule, and alters its focal length by becoming more or less spherical in response to the action of the ciliary muscle on a peripheral suspensory ligament

Other Words from lens

lensed adjective
lensless adjective

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Comments on lens

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