callipers
Definition
- Noun (plural form):
- A measuring instrument: "callipers" refers to a tool used for measuring the dimensions of an object, especially thickness, diameter, or internal/external distances. It typically consists of two hinged legs or jaws that can be adjusted to fit around or inside the object being measured.
- An orthopedic device: "callipers" also denotes a metal splint or brace worn on the leg to support or correct a deformity or weakness, often used in medical rehabilitation.
Usage Examples
Measuring instrument:
- The machinist used callipers to measure the diameter of the metal rod. (The tool was employed to determine the exact width of the cylindrical object.)
- She adjusted the callipers carefully to ensure an accurate reading of the pipe's thickness. (The instrument's jaws were moved to fit around the pipe for precise measurement.)
Orthopedic device:
- After the accident, he needed callipers to help him walk. (The leg brace provided support and stability.)
- The doctor prescribed callipers for the child's weak leg muscles. (The orthopedic device was recommended to aid mobility.)
Advanced Usage
"Vernier callipers": a specific type of callipers with a graduated scale for more precise measurements, allowing readings to fractions of a millimeter.
- The engineer used vernier callipers to measure the thickness of the sheet metal to 0.01 mm. (This advanced tool provides highly accurate dimensional data.)
"Digital callipers": a modern version of callipers with an electronic display for easy reading.
- Digital callipers are popular in workshops because they show measurements instantly. (The electronic readout eliminates the need to interpret a scale.)
Variants and Related Words
Calipers (alternate spelling): same as "callipers," often used in American English.
- He bought a set of calipers for his woodworking projects. (The spelling variation is common but refers to the same tool.)
Calliper (singular form): rarely used; usually the plural "callipers" is standard even for a single tool.
- A single calliper is sufficient for this measurement. (The singular form is occasionally found in technical contexts.)
Synonyms
- Measuring tool: a general term for any instrument used to determine dimensions.
- Gauge: a device for measuring thickness, distance, or other quantities.
- Brace: a support device for a limb (for the orthopedic meaning).
Related Idioms
- "To have callipers on the brain": an informal, humorous expression meaning to be obsessed with precise measurements or details.
- The engineer had callipers on the brain, checking every dimension twice. (He was overly focused on accuracy.)
Phrasal Verbs
- None directly associated with "callipers" as a noun. The word is not typically used as a verb.