tran•sit
  Pronunciation: (tran'sit, -zit), [key]    — n., v., -sit•ed, -sit•ing. 
  
 
—n. - the act or fact of passing across or through; passage from one place to another.  
- conveyance or transportation from one place to another, as of persons or goods, esp., local public transportation:Cf. city transit. 
- a transition or change.  
-   
 -  the passage of a heavenly body across the meridian of a given location or through the field of a telescope. 
-  the passage of Mercury or Venus across the disk of the sun, or of a satellite or its shadow across the face of its primary. 
-  Seemeridian circle. 
- the passage of a planet in aspect to another planet or a specific point in a horoscope.  
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 -  Also calledtransit instrument.an instrument, as a theodolite, having a telescope that can be transited, used for measuring horizontal and sometimes vertical angles. 
-  a repeating transit theodolite. 
- (cap.) one of a series of satellites for providing positional data to ships and aircraft.  
 
—v.t. - to pass across or through.  
- to turn (the telescope of a transit) in a vertical plane in order to reverse direction; plunge.  
- to cross (a meridian, celestial body, etc.).  
 
—v.i. - to pass over or through something; make a transit.  
- to make a transit across a meridian, celestial body, etc.  
 
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.