cis·​co | \ ˈsi-(ˌ)skō How to pronounce cisco (audio) \
plural ciscoes

Definition of cisco

: any of various whitefishes (genus Coregonus) that have a large mouth with a long and often projecting lower jaw especially : lake herring

Examples of cisco in a Sentence

Recent Examples on the Web The suction-cup mouth and teeth helps a lamprey burrow into (and feed on) the flesh of trout, sturgeon, whitefish, ciscoes, burbot, walleye, catfish, and salmon, among others. Joe Genzel, Outdoor Life, "10 Common Parasites and Diseases Found in Game Fish (and What You Need to Know About Them)," 27 May 2020 Cold-water species like cisco were involved in 6% of the die-offs analyzed by the researchers. Elizabeth Weise, USA TODAY, "Global warming could mean fewer fish for sportfishing, more die-offs across US," 9 July 2019 The fish have demonstrated a survival capability not found in most other native ciscoes in the region, five of which have disappeared from Lake Michigan. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: Lake whitefish heat up Green Bay's ice in winter," 20 Jan. 2018 Wazee is stocked periodically with trout, and a cisco introduction project was started in 2013. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: The Wisconsin walleye record has stood since 1933. These five waters have the best potential to top it.," 25 May 2018 In addition, populations of cisco (also called lake herring), one of the major prey items for lake trout, were displaced by non-native alewife and rainbow smelt. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: There's no point in rushing when there's a big laker on the line," 28 Apr. 2018 The Guam flycatcher, the Caribbean monk seal, and the blackfin cisco are now completely extinct from our planet. Josh Linkner, Detroit Free Press, "This happened to the Yangtze River dolphin; could it happen to you?," 1 Apr. 2018 And further down the food chain, at least seven species of ciscos were known to exist. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: Lake herring restoration is being considered for Lake Michigan," 3 Jan. 2018 Michael Lemanski of Florence, Wisc., caught the cisco at approximately 10 a.m. June 9 on Lake Ottawa in Iron County (western Upper Peninsula). Brian Manzullo, Detroit Free Press, "Michigan DNR says state-record cisco fish caught on Lake Ottawa," 18 Oct. 2017

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

1848, in the meaning defined above

History and Etymology for cisco

short for Canadian French ciscoette

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Time Traveler for cisco

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The first known use of cisco was in 1848

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Cite this Entry

“Cisco.” Dictionary, Merriam-Webster, Accessed 25 Nov. 2020.

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