ul·tra·light | \ˈəl-trə-ˌlīt \

Definition of ultralight 

(Entry 1 of 2)

: extremely light in mass or weight an ultralight alloy an ultralight pullover



Definition of ultralight (Entry 2 of 2)

: a very light recreational aircraft typically for one person that is powered by a small gasoline engine

Examples of ultralight in a Sentence

Recent Examples on the Web: Adjective

Icebreaker’s ultralight wool undies won out because of consistency. Kassondra Cloos, Outside Online, "The Best Women’s Active Outdoor Underwear," 6 July 2018 Thanks to ultralight nylon and polyester fabrication, and its aluminum poles, the tent weighs less than 3 pounds all in. Clint Carter, WSJ, "Why Camping Alone Can Make You a Mental Winner," 26 June 2018 The Google cofounder’s company is building a recreational flying machine small enough to fit into the FAA’s ultralight category, and planning to sell it for use over water, which gets around restrictions on flying over crowded areas. Jack Stewart, WIRED, "Boeing's $2 Million Challenge to Make the Sky Fun Again—With 'Flying Motorbikes'," 14 June 2018 Later, hoping to catch some bluegills, Allen switched to his 4-pound ultralight spinning outfit and a 16th-ounce Johnson Beetle Spin and caught three bass, each around 1 pound. Steve Waters, miamiherald, "Despite warm temperatures, bass are still spawning and creating some thrilling fishing," 1 June 2018 Luckily for the old GoLite faithful, the company that specialized in ultralight backpacking gear does still exist, albeit under a different name. Ariella Gintzler, Outside Online, "GoLite, Thru-Hikers' Favorite Brand, Is Back. Sorta.," 10 May 2018 Yes, true ultralight hikers will scoff at this bit of advice, but the rest of us appreciate a few simple creature comforts when things aren't going our way. Kraig Becker, Popular Mechanics, "8 Things to Know Before You Hike the Appalachian Trail," 1 Mar. 2017 There’s the full-frame F1L, which blocks the most light of the bunch; the ultralight S1L, which has minimal frames and smaller lenses; and the S2L, which has the widest frames and the widest lenses, for maximum field of vision. Ariella Gintzler, Outside Online, "Revant Launches Sunglasses That'll Last Forever," 26 Apr. 2018 By utilizing ultralight sterilization (UV-C), Üvi eliminates 99 percent of pathogens. Necee Regis, BostonGlobe.com, "Here, there, and everywhere," 18 Apr. 2018

Recent Examples on the Web: Noun

Three years after ultralight backpacking gear company GoLite filed for bankruptcy and liquidated its assets, the brand is back—at least in name. Ariella Gintzler, Outside Online, "GoLite, Thru-Hikers' Favorite Brand, Is Back. Sorta.," 10 May 2018 Ultralight packs, which weigh around two pounds for 45- to 55-liter models, are best suited for backpackers who log long-mileage days and can fill that pack with ultralight sleeping and cooking systems. Kelly Bastone, Outside Online, "The Best Women’s Backpacking Packs," 13 July 2018 The tiny ultralight thudded and bounced but remained gamely intact, then came to a stop. Caroline Paul, Outside Online, "Caroline Paul on Her First Emergency Landing," 11 July 2018 The ultralight classification limits speed and weight but has one major advantage: no pilot's license required. The person onboard controls direction with a joystick in one hand and speed with a slider in the other. Jack Stewart, WIRED, "Larry Page's Flying Car Project Suddenly Seems Rather Real," 8 June 2018 That insulation is housed in an ultralight Pertex Quantum shell that breathes well but is wind and water resistant. Wes Siler, Outside Online, "Your Guide to Layering This Spring," 6 Apr. 2018 Made with ultralight foam construction, the Teva Arrowood Lux is a far cry from your typical clunky hiking shoe. Sarah Sekula, Fox News, "Mother's Day gifts your active, adventurous, outdoorsy mom will love," 8 May 2018 The Sanchi had been carrying almost 1 million barrels of condensate, an ultralight, highly flammable crude oil. Washington Post, "World Digest: Jan. 17, 2018," 17 Jan. 2018 Weighing only about eight pounds, these ultralight, one-person rafts have completely changed the way adventurers explore all across Alaska, but particularly in Wrangell-St. Nathaniel Wilder, Smithsonian, "A Daring Journey Into the Big Unknown of America’s Largest National Park," 18 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ultralight.' 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 ultralight


1974, in the meaning defined above


1974, in the meaning defined above

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25 Aug 2018

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The first known use of ultralight was in 1974

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