How to Use tracer in a Sentence

tracer

noun
Definition of tracernext
Synonyms for tracernext
  • They injected her with a radioactive tracer and tracked it via X-rays.
  • This is by no means the first time NASA has lit up the night with vapor tracers.
    — Jason Daley, Smithsonian, 29 June 2017
  • The point breaks off high spots and roughs stone to shape; the tracer splits more precisely.
    — Roy Berendsohn, Popular Mechanics, 10 Apr. 2021
  • If you were tested, feel free to ask the contact tracer when and where.
    — Nerd Wallet, oregonlive, 3 Aug. 2020
  • My goal is at least 20 people with an AR-15 and some tracer rounds.
    — Emily Shapiro, ABC News, 22 Aug. 2022
  • Cameras were set up at Wallops and in Duck, N.C., to track the color tracers through the air.
    — Angela Fritz, Washington Post, 29 June 2017
  • But a call from a tracer did help people in other ways.
    — New York Times, 17 Mar. 2022
  • Skinny: Bauer should have been ahead, 0-1, but plate umpire Adam Hamari missed the call on a low tracer to the inside edge at the knees.
    — Dennis Manoloff, cleveland.com, 31 July 2017
  • The background was a backing light made to look like the city with tracer lights for moving cars and green and red lights for traffic.
    — Los Angeles Times, 15 Aug. 2019
  • There are currently just 500 tracers across the state, with plans to add thousands more.
    — Erin Corbett, refinery29.com, 23 Apr. 2020
  • The flamethrowers that were fired at old appliances, the tracers that lit up the sky, the teenage girl who had near perfect aim with a pistol.
    — Pipposts, Longreads, 18 Dec. 2019
  • For a state the size of Indiana, that number is more than 2,000 contact tracers.
    — Tony Cook, Indianapolis Star, 1 May 2020
  • One key tracer is iron-60, forged in the cores of large stars, which has a half-life of 2.6 million years and is not made naturally on Earth.
    — Daniel Clery, Science | AAAS, 15 July 2021
  • What has surprised you about your county from your work as a contact tracer?
    — Logan Jaffe, ProPublica, 1 Oct. 2020
  • Are those red lights in the distance tracer fire or fireworks from a wedding? (Fireworks.
    — Jennifer Senior, New York Times, 24 Apr. 2016
  • In it, lights can be seen in the distance and what appears to be a single gunshot can be heard, with a tracer round racing across the top of the water.
    — Jon Gambrell, USA TODAY, 28 Apr. 2021
  • An officer hit by tracer shells, his wounds smoking, begs his men to shoot him.
    — Daniel Todman, WSJ, 15 Oct. 2018
  • Typically, a chemical tracer would be added to the water, like a salt or dye, to track the flow.
    — Kevin Davenport, idahostatesman, 3 July 2018
  • But few of these contact tracers have spoken out in public.
    — Aliza Nadi, NBC News, 27 Apr. 2020
  • Cardenas saw a ditch, ran to it and began crawling along its banks, tracers whizzed over his head.
    — Sig Christenson, ExpressNews.com, 5 Aug. 2019
  • With two outs and the bases loaded in the seventh, Chris Taylor crushed a fastball from Craig Stammen, sending a tracer over the left-field wall.
    — Dennis Lin, sandiegouniontribune.com, 1 July 2017
  • Red tracer fire arced across Takhto Valley in response.
    — Michael M. Phillips, WSJ, 10 Dec. 2017
  • The tracer, which is injected into the bloodstream, lights up those cells during a PET scan.
    — NBC News, 27 May 2021
  • Plus, each bag comes with a unique tracer number for easy recovery.
    — Madison Yauger, Peoplemag, 13 Apr. 2023
  • The city has yet to meet the threshold of contact tracers, or total hospital beds and ICU beds available.
    — Audrey McNamara, CBS News, 28 May 2020
  • Most states are currently in need of more contact tracers.
    — Whizy Kim, refinery29.com, 6 May 2020
  • The white ball soared into the gun-metal sky, like a tracer round towards the left side of the seventh fairway stretching out below.
    — Rob Hodgetts, CNN, 18 July 2019
  • An able tracer of provenance, Walpole delighted in spoofing the past.
    — Dominic Green, WSJ, 26 Oct. 2018
  • Video filmed by Al Jazeera, at an unknown time, shows people scrambling over a berm to get away from gunfire as red tracer rounds light up the sky.
    — Jonathan Baran, Washington Post, 1 Mar. 2024
  • This chemistry gives the molten rock a unique chemical fingerprint that can act like a tracer.
    — Maya Wei-Haas, Smithsonian Magazine, 21 Feb. 2024

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'tracer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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