funiculus

/fju:'nikjuləs/

Thân thiện

The botanist carefully examines the funiculus of a pea pod.

Definition

1. Noun:
   • A cord-like anatomical structure: In anatomy and zoology, a funiculus is any small, cord-like structure or bundle, particularly one found in the nervous system or serving as a connecting stalk.
   • A plant stalk: In botany, the funiculus is the slender stalk that connects an ovule (and later, a seed) to the placenta inside the ovary of a flowering plant.

Usage Examples

• Anatomical Context:

  • The anterior funiculus of the spinal cord contains ascending and descending nerve tracts.
  • In some invertebrates, the funiculus is part of the antenna.

• Botanical Context:

  • The funiculus supplies nutrients to the developing ovule.
  • After fertilization, the seed is attached to the pod by a funiculus.

Advanced Usage

• "Funicular" as a related adjective: Pertaining to or resembling a rope or cord.
  • The funicular ligament is a cord-like structure in the body.
  • (Note: This is a distinct word, not a direct variant of "funiculus".)

Variants and Related Words

• Funiculi (n): The plural form of funiculus.

  • The spinal cord's white matter is divided into columns called funiculi.

• Funicular (adj): 1. Relating to or operated by a cable railway. 2. (Anatomy) Of or like a funiculus.

  • We took the funicular railway up the mountain. (This is the most common modern usage, but it shares the etymological root meaning "cord".)

Synonyms

• Cord: A length of flexible material; a general term that can be synonymous in the anatomical sense.
• Stalk: A slender stem supporting a plant part; synonymous in the botanical sense.
• Filament: A slender thread-like object; can be similar in botanical contexts.

Notes on Meaning

The word "funiculus" is highly specialized. Its meaning is entirely dependent on the scientific context: - In anatomy/zoology, it refers to a small, cord-like bundle of fibers (e.g., nerve fibers). - In botany, it refers specifically to the seed stalk. These two meanings are distinct and not interchangeable within their respective fields.

Học thuật

Noun

1. any of several body structure resembling a cord
2. the stalk of a plant ovule or seed

Từ đồng nghĩa

• funicle