Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A Eurasian plant (Taraxacum officinale) of the composite family having many-rayed yellow flower heads and deeply notched basal leaves. Widely naturalized as a weed in North America, it is used in salads and to make wine.
  • n. Any of several similar or related plants.
  • n. A brilliant to vivid yellow.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of the several species of plant in the genus Taraxacum, characterised yellow flower heads and notched, broad-ended leaves, especially the common dandelion (Taraxacum officinale).
  • n. The flower head or fruiting head of the dandelion plant.
  • n. A yellow colour, like that of the flower.
  • adj. Of a yellow colour, like that of the flower.

from the GNU version of the Collaborative International Dictionary of English

  • n. A well-known plant of the genus Taraxacum (Taraxacum officinale, formerly called Taraxacum Dens-leonis and Leontodos Taraxacum) bearing large, yellow, compound flowers, and deeply notched leaves.

from The Century Dictionary and Cyclopedia

  • n. A well-known plant, Taraxacum officinale, natural order Compositæ, having a naked fistulous scape with one large bright-yellow flower, and a tapering, milky, perennial root.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any of several herbs of the genus Taraxacum having long tap roots and deeply notched leaves and bright yellow flowers followed by fluffy seed balls

Etymologies

Middle English dent-de-lioun, from Old French dentdelion, from Medieval Latin dēns leōnis, lion's tooth (from its sharply indented leaves) : Latin dēns, dent-, tooth.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From French dent-de-lion ("lion's tooth"), also in Late Latin dēns leōnis. The term has since died out in French (except in Swiss French), but compare Spanish diente de león, Italian dente di leone, Norwegian løvetann, Portuguese dente-de-leão, and also German Löwenzahn, all having the same literal meaning. (Wiktionary)

Examples

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  • Daffynition: A fashionably dressed big cat (dandy-lion)

    June 16, 2012