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SEPAL | meaning in the Cambridge English Dictionary
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Meaning of “sepal” in the English Dictionary


  • English
  • American
  • Examples

  • English
  • American
  • Examples

“sepal” in English

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noun [ C ]




one of the parts forming the outer part of a flower that surround the petals and are usually small and green

Thesaurus: synonyms and related words

Parts of plants

  • bud

  • cambium

  • cane

  • carpel

  • fig leaf

  • lamina

  • leafless

  • lily pad

  • lobed

  • loose tea

  • meristem

  • mesophyll

  • organ

  • prickle

  • stem

  • stubble

  • tendril

  • testa

  • the treetops

  • twig

See more results »

You can also find related words, phrases, and synonyms in the topics:

Flowers – general words

(Definition of “sepal” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)


  • English
  • American
  • Examples

  • English
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  • Examples

“sepal” in American English

See all translations

noun [ C ]


biology one of the parts of the outer part of a flower , which surround the petals and are usually small and green

(Definition of “sepal” from the Cambridge Academic Content Dictionary © Cambridge University Press)


  • English
  • American
  • Examples

  • English
  • American
  • Examples

Examples of “sepal”

These examples are from the Cambridge English Corpus and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

The seeds are surrounded by the pericarp and sepals and do not become dormant.
From Cambridge English Corpus

The fruits have two to five long wings (elongated sepals) and are dispersed by wind.
From Cambridge English Corpus

There are four input parameters to describe the three classes of flowers, namely, sepal length, sepal width, petal length, and petal width.
From Cambridge English Corpus

First, after discretization with greedy chi-merge, two parameters of sepal length and sepal width are removed because they have only one interval.
From Cambridge English Corpus

There can be no advantage in having a separate debate for the sake of having a separate debate, or an order for the sake of a sepal ate order.
From the

Hansard archive

The inflorescence is a branching cluster of flowers with small green sepals and no petals.


Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom.


A polymerous daylily flower is one with more than three sepals and more than three petals.


The linear petals are slightly shorter than the sepals.


The flowers are small and green with five sepals and five petals that are nearly alike.


The sepals stay fused as the petals bloom from one side.


The petals are similar to the sepals but slightly narrower at the base.


Each spreading flower has three reflexed sepals up to 3 centimeters long and three flat petals each up to 2 centimeters long.


They have five sepals, five petals, 16 stamens, and four styles.


Each has green or purplish bracts and sepals and no petals.


Translations of “sepal”


  • in Chinese (Traditional)
  • in Portuguese
  • in Chinese (Simplified)

  • 萼片(花朵外部的多個器官之一,圍繞花瓣,通常較小且呈綠色)…

  • sépala…

  • 萼片(形成花的外面器官的各部分之一,围绕花瓣,通常较小且呈绿色)…

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What is the pronunciation of sepal?


  • sentry

  • sentry box

  • SEO

  • Seoul

  • sepal
  • separable

  • separate

  • separate the sheep from the goats idiom

  • separate the wheat from the chaff idiom

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      From Wikipedia, the free encyclopedia

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      Diagram showing the parts of a mature flower. In this example the perianth is separated into a calyx (sepals) and corolla (petals)

      Tetramerous flower of Ludwigia octovalvis showing petals and sepals.

      After blooming, the sepals of Hibiscus sabdariffa expand into an edible accessory fruit

      In many Fabaceae flowers, a calyx tube surrounds the petals.

      A sepal ( /ˈsɛpəl/ or /ˈspəl/ ) [1] [2] [3] is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom. [4] The term sepalum was coined by Noël Martin Joseph de Necker in 1790, and derived from the Greek σκεπη (skepi), a covering. [5] [6]

      Collectively the sepals are called the calyx (plural calyces), [7] the outermost whorl of parts that form a flower. The word calyx was adopted from the Latin calyx, [8] not to be confused with calix, a cup or goblet. [9] Calyx derived from the Greek κάλυξ (kalyx), a bud, a calyx, a husk or wrapping, (cf Sanskrit kalika, a bud) [10] while calix derived from the Greek κυλιξ (kylix), a cup or goblet, and the words have been used interchangeably in botanical Latin. [11]

      After flowering, most plants have no more use for the calyx which withers or becomes vestigial. Some plants retain a thorny calyx, either dried or live, as protection for the fruit or seeds. Examples include species of Acaena , some of the Solanaceae (for example the Tomatillo , Physalis philadelphica), and the water caltrop , Trapa natans. In some species the calyx not only persists after flowering, but instead of withering, begins to grow until it forms a bladder-like enclosure around the fruit. This is an effective protection against some kinds of birds and insects, for example in Hibiscus trionum and the Cape gooseberry .

      Morphologically , both sepals and petals are modified leaves. The calyx (the sepals) and the corolla (the petals) are the outer sterile whorls of the flower, which together form what is known as the perianth . [12]

      The term tepal is usually applied when the parts of the perianth are difficult to distinguish, [13] e.g. the petals and sepals share the same color, or the petals are absent and the sepals are colorful. When the undifferentiated tepals resemble petals, they are referred to as “petaloid”, as in petaloid monocots , orders of monocots with brightly coloured tepals. Since they include Liliales , an alternative name is lilioid monocots. Examples of plants in which the term tepal is appropriate include genera such as Aloe and Tulipa . In contrast, genera such as Rosa and Phaseolus have well-distinguished sepals and petals.[ citation needed ]

      The number of sepals in a flower is its merosity . Flower merosity is indicative of a plant’s classification. The merosity of a eudicot flower is typically four or five. The merosity of a monocot or palaeodicot flower is three, or a multiple of three.

      The development and form of the sepals vary considerably among flowering plants . [14] They may be free (polysepalous) or fused together (gamosepalous). [15] Often, the sepals are much reduced, appearing somewhat awn -like, or as scales, teeth, or ridges. Most often such structures protrude until the fruit is mature and falls off.

      Examples of flowers with much reduced perianths are found among the grasses .

      In some flowers, the sepals are fused towards the base, forming a calyx tube (as in the Lythraceae family, [16] and Fabaceae ). In other flowers (e.g., Rosaceae, Myrtaceae) a hypanthium includes the bases of sepals, petals, and the attachment points of the stamens .

      See also[ edit ]

      Wikimedia Commons has media related to Sepals .
      • Plant morphology

      References[ edit ]

      1. ^ From French sépale, from New Latin sepalum, blend of sep- from Greek skepē, “a covering” and -alum from New Latin petalum, “petal”, influenced by French pétale “petal”.
      2. ^ “Oxford dictionary” .

      3. ^ “Collins dictionary” .
      4. ^ Beentje, Henk (2010). The Kew Plant Glossary. Richmond, Surrey: Royal Botanic Gardens, Kew . ISBN   978-1-84246-422-9 , p. 106
      5. ^ Stearn, William T. (2000). Botanical Latin, 4th ed.: 38-39. ISBN   0-88192-321-4
      6. ^ Necker, N.J. de (1790). Corollarium ad Philosophiam botanicam Linnaei 18 , 31
      7. ^ Shorter Oxford English dictionary, 6th ed. United Kingdom: Oxford University Press. 2007. p. 3804. ISBN   0199206872 .
      8. ^ Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928
      9. ^ John Entick, William Crakelt, Tyronis thesaurus, or, Entick’s new Latin English dictionary. Publisher: E.J. Coale, 1822
      10. ^ Tucker, T. G. (1931). A Concise Etymological Dictionary of Latin. Halle (Saale): Max Niemeyer Verlag.
      11. ^ Stearn, William T. (2000). Botanical Latin, 4th ed.: 38
      12. ^ Davis, P.H.; Cullen, J. (1979). The identification of flowering plant families, including a key to those native and cultivated in north temperate regions. Cambridge: Cambridge University Press. p. 106. ISBN   0-521-29359-6 .
      13. ^ Beentje 2010 , p. 119
      14. ^ Sattler, R. 1973. Organogenesis of Flowers. A Photographic Text-Atlas. University of Toronto Press. ISBN   0-8020-1864-5 .
      15. ^ Beentje 2010 , pp. 51 & 91.
      16. ^ Carr, Gerald. “Lythraceae” . University of Hawaii. Archived from the original on 2008-12-05. Retrieved 2008-12-20.
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          Home British & World English sepal

          Definition of sepal in English:




          • Each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike.

            • ‘This, in turn was surrounded by several whorls of bracts that many homologize with petals and sepals in flowering plants.’
            • ‘The cocoa flower has five free sepals, five free petals, five staminodes, five stamens and an ovary of five united carpels.’
            • ‘Roots, stems, leaves, sepals, petals, stamens, stigmas/styles, ovaries, and seeds were collected and frozen in liquid nitrogen.’
            • ‘Fruits of this species are glabrous achenes, with sepals modified into plumose bristles and are frequently wind-dispersed.’
            • ‘The formation of organs in the four whorls of a typical eudicotyledonous flower, consisting of sepals, petals, stamens, and carpels, requires many genes for proper organ and tissue development.’


          Early 19th century: from French sépale, modern Latin sepalum, from Greek skepē ‘covering’, influenced by French pétale ‘petal’.




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