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tran·sit (trănsĭt, -zĭt)
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n.
1. The act of passing over, across, or through; passage.
2.
a. Conveyance of people or goods from one place to another, especially on a local public transportation system.
b. The system or vehicles used for such conveyance.
3. A transition or change, as to a spiritual existence at death.
4. Astronomy
a. The passage of a celestial body across the observer's meridian.
b. The passage of a smaller celestial body or its shadow across the disk of a larger celestial body.
5. A surveying instrument similar to a theodolite that measures horizontal and vertical angles.
v. tran·sit·ed, tran·sit·ing, tran·sits
v.tr.
1. To pass over, across, or through: aircraft transiting the United States and Canada.
2. Astronomy To make a transit across (a celestial body as perceived by an observer), as a planet passing between the sun and Earth.
3. To revolve (the telescope of a surveying transit) about its horizontal transverse axis in order to reverse its direction.
v.intr.
Astronomy
To make a transit.

[Middle English transite, from Latin trānsitus, from past participle of trānsīre, to go across; see TRANSIENT.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

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