stopwatch
Definition
Noun: A portable timekeeping device designed to measure elapsed time intervals with high precision. It features controls to start, stop, and reset the timing mechanism, allowing it to be used for exact timing of events like races, experiments, or sports.
Usage
A "stopwatch" is used to measure the duration of an event. It is typically started at the beginning of the event and stopped at the end. The primary function is precise timing. - The referee used a stopwatch to time the 100-meter sprint. - Please use the stopwatch to see how long the chemical reaction takes.
Advanced Usage
- "To be on the stopwatch": To be in the process of being timed or measured.
- The athlete knew he was on the stopwatch, so he gave his best performance.
- Digital/Analog stopwatch: Specifies the type of display. A digital stopwatch shows numbers on an electronic screen, while an analog one uses a sweeping hand on a dial.
- For lab work, a digital stopwatch is often preferred for its clarity.
Variants and Related Words
- Timer (n): A more general term for any device that measures time intervals. All stopwatches are timers, but not all timers (e.g., kitchen timers, hourglasses) are stopwatches.
- Set the timer for 20 minutes.
- Chronograph (n): A technical term, often for a watch with a built-in stopwatch function.
- His wristwatch is a chronograph capable of measuring lap times.
Synonyms
- Timekeeper: A device or person that records time.
- Chronometer: A very precise time-measuring instrument, often used in navigation.
Related Phrases
- "Start/stop the stopwatch": The basic commands for operating the device.
- Start the stopwatch when the light turns green.
- "Lap time": A feature on many stopwatches that records split times without stopping the overall timing.
- The runner checked his lap time at every mile marker.
Noun
-
a timepiece that can be started or stopped for exact timing (as of a race)
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