valvule

/'vælvju:l/

Thân thiện

The botanist examines the valvule of a seed pod under a magnifying glass.

Definition

Noun: 1. A small valve: A diminutive structure, typically in anatomy or botany, that functions similarly to a valve by controlling the passage of fluid or material. It is a tiny, often leaf-like, flap or fold.

Examples of Usage

• Noun:
  • The surgeon carefully repaired the damaged valvule in the patient's vein.
  • Under the microscope, we observed the tiny valvules that prevent the backflow of lymph in the lymphatic vessels.
  • The botanist studied the seed pod's valvules to understand its mechanism of dispersal.

Advanced Usage

• Technical/Medical Context: The term is almost exclusively used in specialized scientific fields such as anatomy, medicine, and botany. It is not common in everyday language.
  • The pathology report noted an abnormality in the mitral valvule.
• Descriptive Use: Can be used descriptively to emphasize the small size of a valve-like structure.
  • The insect's heart has several minute valvules regulating hemolymph flow.

Variants and Related Words

• Valve (noun): The standard, more general term for a device or structure that regulates, directs, or controls the flow of a fluid or material.
• Valvular (adjective): Pertaining to or having the nature of a valve or valves (e.g., ).

Synonyms

• Small valve
• Valvelet (a less common, direct synonym)
• Flap (in a general, non-technical sense for a thin, flat piece attached on one side)

Notes on Meaning

• Primary Meaning: The core meaning is simply "a small valve." Its application is technical.
• Field-Specific Nuances:
  • In human anatomy, it often refers to small valves in the venous, lymphatic, or cardiac systems (e.g., the valves of the lymphatics or the small cusps of heart valves).
  • In botany, it can refer to the segments or pieces into which a seed capsule or fruit dehisces (splits open).

Học thuật

Noun

1. a small valve

Từ đồng nghĩa

• valvelet
• valvula