valved

/vælvd/

Thân thiện

The trumpet is a valved brass instrument.

Definition

Adjective 1. Having a valve or valves: Describes something that is equipped with one or more valves, which are devices that regulate the flow of a fluid (like gas or liquid) by opening, closing, or obstructing passages. 2. (Of brass instruments) Having valves: Specifically describes brass musical instruments (like trumpets or tubas) that use valves to change the pitch by altering the length of the tube the air travels through. 3. (Biology) Having a shell composed of parts or valves: Used in botany and zoology to describe structures, such as certain seed pods or mollusk shells, that are composed of separate sections or plates.

Usage Examples

• The plumber recommended replacing the old valved pipe fitting. (Having a valve or valves)
• Modern cornets are valved brass instruments, unlike the older keyed bugles. ((Of brass instruments) Having valves)
• The mussel has a valved shell that it can open and close. ((Biology) Having a shell composed of parts or valves)

Advanced Usage

• Technical/Engineering Context: Often used in technical specifications to describe components like valved connectors, valved manifolds, or valved exhaust systems, emphasizing the presence of a control mechanism.
• Biological Classification: Used as a descriptive term in taxonomy, e.g., "valved fruits" like those of the pea family, or "valved mollusks" like clams.

Variants and Related Words

• Valve (noun): The device or structure itself.
  • The heart has four valves.
• Valveless (adjective): Lacking valves.
  • Some traditional brass instruments are valveless.
• Bivalved (adjective): Having a shell consisting of two hinged valves (a specific type of "valved").
  • Oysters are bivalved mollusks.

Synonyms

• Gated (in a general flow-control sense, but less common).
• Regulated (implies control, but not specifically by a valve).
• Sectioned or articulated (for the biological meaning of having parts).

Antonyms

• Valveless
• Unvalved
• Solid (for shells)
• Simple (for structure)

Học thuật

Adjective

1. (of brass instruments) having valves