51Թ

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cotyledon

[ kot-l-eed-n ]

noun

Botany.
  1. the primary or rudimentary leaf of the embryo of seed plants.
  2. Anatomy. any of several lobules of the placenta.


cotyledon

/ ˌɒɪˈːə /

noun

  1. a simple embryonic leaf in seed-bearing plants, which, in some species, forms the first green leaf after germination
  2. a tuft of villi on the mammalian placenta
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cotyledon

/ ŏ′l-ŧn /

  1. A leaf of the embryo of a seed-bearing plant. Most cotyledons emerge, enlarge, and become green after the seed has germinated. Cotyledons either store food for the growing embryo (as in monocotyledons) or absorb food that has been stored in the endosperm (as in other angiosperms) for eventual distribution to the growing parts of the embryo.
  2. Also called seed leaf
  3. See more at eudicotyledon
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Derived Forms

  • ˌdzٲˈDzԴdzܲ, adjective
  • ˌdzٲˈDzԲ, adjective
  • ˌdzٲˈDzԲ, adjective
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Other 51Թ Forms

  • dzy·dDz· dz···Dz·· [kot-l-, eed, -n-er-ee], dzy·dDz·dzܲ adjective
  • ԴDzcdz··dDz· adjective
  • ԴDzcdz··dDz·y adjective
  • ԴDzcdz··dDz·dzܲ adjective
  • pseudo·dzy·dDz· adjective
  • d·dzy·dDz·y adjective
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51Թ History and Origins

Origin of cotyledon1

1535–45; < Latin: navelwort < Greek dzٲŧṓn a plant (probably navelwort), literally, a cuplike hollow, derivative of dzýŧ cup
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51Թ History and Origins

Origin of cotyledon1

C16: from Latin: a plant, navelwort, from Greek dzٳܱŧō, from dzٳܱŧ cup, hollow
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Example Sentences

Examples have not been reviewed.

Microgreens are simply the cotyledons or seed leaves, that first emerge from a seed when it germinates.

From

In five days, the “baby” cotyledon leaves were up, with the “true” notched tomato leaves following at day 10.

From

It typically grows there until the first true leaves appear, although robust growers may be ready for the next step when they still have only seed leaves, or cotyledons.

From

Embryo placed in a groove on the outside of the albumen and curved half-way around it; the radicle and usually the cotyledons slender.—Pedicels jointed.

From

A plant which has no cotyledons, as the dodder and all flowerless plants.

From

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