Definition of Time-ball in English :
Define Time-ball in English
Time-ball meaning in English
Meaning of Time-ball in English
Pronunciation of Time-ball in English
Time-ball pronunciation in English
Pronounce Time-ball in English
Time-ball
see synonyms of time-ballNoun
1. time-ball
a ball that slides down a staff to show a fixed time; especially at an observatory
WordNet Lexical Database for English. Princeton University. 2010.