from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The art or practice of measuring time by hours and subordinate divisions.
from the GNU version of the Collaborative International Dictionary of English
- n. The art, practice, or method of measuring time by hours and subordinate divisions.
from The Century Dictionary and Cyclopedia
- n. The art of determining the exact error of a timepiece by observation; also, more generally, the art of keeping time, or of knowing the time of day.
Compare French horométrie. See horometer. (Wiktionary)