What does chronometer mean?
A clock or watch that is accurate and reliable, often used as a standard for measuring time. A chronometer is a highly precise timepiece that is certified by a recognized authority, such as the Swiss Official Chronometer Testing Institute.
Example
"The watchmaker adjusted the chronometer to ensure it was keeping perfect time."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.