noun
1. : the observed or predicted time of the transit of a celestial body across the meridian
2. : the time required for a particle (as an electron) to traverse the distance between two specified points (as from cathode to plate in a vacuum tube)
noun
1. : the observed or predicted time of the transit of a celestial body across the meridian
2. : the time required for a particle (as an electron) to traverse the distance between two specified points (as from cathode to plate in a vacuum tube)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012