cupule

/'kju:pju:l/

Thân thiện

An acorn rests securely in its rough, brown cupule on a mossy forest floor.

Definition

1. Noun:
   • A cup-shaped anatomical structure: In botany, a "cupule" is a small, cup-shaped structure, typically formed from hardened bracts, that surrounds or supports certain fruits, most notably the base of an acorn.
   • A sucker or cup-shaped organ: In zoology, a "cupule" refers to a cup-shaped sucker or attachment organ found on the feet of some insects, such as certain flies.

Examples of Usage

• Noun (Botany):

  • The acorn sits securely in its rough, scaly cupule.
  • The fossil showed clear impressions of the nut and its surrounding cupule.

• Noun (Zoology):

  • The fly's ability to walk on smooth surfaces is aided by cupules on its feet.
  • Under the microscope, the tiny cupules on the insect's leg were clearly visible.

Advanced Usage

• In Paleobotany: The term is used to describe the fossilized cup-shaped structures that enclosed the seeds of ancient plants.
  • The study focused on the morphology of Carboniferous seed fern cupules.

Variants and Related Words

• Cupular (adj): Having the shape of a cupule; cup-shaped.
  • The cupular bracts were a key identifying feature.
• Cupulate (adj): Furnished with or shaped like a cupule.
  • The cupulate fruit structure is characteristic of the Fagaceae family.

Synonyms

• Acorn cup: Specifically for the botanical structure on an acorn.
• Sucker: Specifically for the zoological attachment organ (though "sucker" is a broader term).
• Cup: A more general term for a cup-shaped vessel or structure.

Related Terms and Contexts

• Involucre: In botany, a ring of bracts surrounding a flower cluster or fruit base; a cupule is a specific type of involucre.
• Bract: A modified leaf associated with a flower or inflorescence; cupules are often composed of hardened bracts.

Học thuật

Noun

1. a sucker on the feet of certain flies
2. cup-shaped structure of hardened bracts at the base of an acorn

Từ đồng nghĩa

• acorn cup