Cotyledon: meaning, definitions and examples

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cotyledon

 

[ˌkɒtɪˈliːdən ]

Definition

Context #1 | Noun

botanical term

A cotyledon is the first leaf or leaves that appear from a seedling. In plants, cotyledons serve as a nutrient source for the young plant until it can produce its own food through photosynthesis. The number of cotyledons can vary; for example, dicots typically have two cotyledons, while monocots have one.

Synonyms

seed leaf.

Examples of usage

  • The pea plant has two cotyledons.
  • During germination, the cotyledon emerges from the seed.
  • Cotyledons can sometimes photosynthesize.
  • The orchid is known for having a single cotyledon.

Interesting Facts

Etymology

  • The term comes from the Greek words 'kotylē' meaning 'cup' and 'dōn' meaning 'given', reflecting the cup-like shape of the seed leaves.
  • It was first used in the early 19th century as scientists began classifying plant structures more systematically.

Botanical Significance

  • Cotyledons are vital for seedling survival, as they often store nutrients that support the young plant before it can photosynthesize.
  • Plants are typically categorized as either monocots, which have one cotyledon, or dicots, which have two, influencing their growth patterns.

Cultural References

  • In gardening, understanding cotyledons can help gardeners know when to transplant young plants to give them the best chance at survival.
  • In some folklore, seeds with strong cotyledons were seen as symbols of potential and rebirth, indicating a strong future for the plant.

Science

  • Studies show that the size and health of cotyledons can significantly impact a plant's early growth and resilience to environmental stress.
  • Cotyledons play a crucial role in signaling when to start producing true leaves, marking a plant's transition to maturity.

Education

  • In biology classes, teaching about cotyledons often sparks interest in plant anatomy and the life cycle of flowering plants.
  • Hands-on activities, like growing seeds in class, help students visualize the process and importance of cotyledons.

Translations

Translations of the word "cotyledon" in other languages:

🇵🇹 cotilédone

🇮🇳 बीजपत्र (बीजपत्र)

🇩🇪 Keimblatt

🇮🇩 kotiledon

🇺🇦 сім'ядоля

🇵🇱 liść zarodkowy

🇯🇵 子葉 (こよう

🇫🇷 cotylédon

🇪🇸 cotiledón

🇹🇷 kotiledon

🇰🇷 씨앗잎 (씨앗 잎)

🇸🇦 ورقة جنينية (ورقة جنينية)

🇨🇿 děložní list

🇸🇰 klíčový list

🇨🇳 子叶 (zǐ yè)

🇸🇮 kotelidon

🇮🇸 fræplátur

🇰🇿 бұтақ жапырағы

🇬🇪 სემიადოლი

🇦🇿 toxum yarpağı

🇲🇽 cotiledón

Word Frequency Rank

At rank #29,493, this word represents specialized academic or technical vocabulary. It's less frequently encountered but may be valuable in specific contexts.