: any of various composite (see compositeentry 1 sense 1b) flowering plants (especially genera Carduus, Cirsium, and Onopordum) that have prickles on their leaves and sometimes on their stems and often have showy heads of tubular, usually purple flowers
also: any of various other prickly plants
2
often thistle seed plural thistle seeds: the small black seed of a tropical African herbaceous plant (Guizotia abyssinica) used especially as a source of oil and for bird feed
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Starters include delicious ‘cheese balls’ or pan frito, made with cotija cheese, serrano chile, chestnut butter and pine thistle, a wagyu tri-tip kebab + perilla leaf, blue prawn tostada and a sea urchin stew.—Michael Goldstein, Forbes.com, 6 Apr. 2025 Most of the development would be on fields of thistles near several lakes where red kites fly overhead.—Eshe Nelson, New York Times, 23 Feb. 2025 The Cost Of Data Ownership While proprietary data may be the new AI gold, there are thorns and thistles on the way there.—Kolawole Samuel Adebayo, Forbes, 25 Feb. 2025 All those records and tapes and spools and switches and knobs feel as much part of the landscape as the thistles, the moss, the crags, the forests.—Bilge Ebiri, Vulture, 25 Jan. 2025 See All Example Sentences for thistle
Word History
Etymology
Middle English thistel, from Old English; akin to Old High German distill thistle
First Known Use
before the 12th century, in the meaning defined at sense 1
Time Traveler
The first known use of thistle was
before the 12th century
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