| slovo | definícia |
transit instrument
(encz) | transit instrument, n: |
Transit instrument
(gcide) | Transit \Trans"it\, n. [L. transitus, from transire to go over:
cf. F. transit. See Transient.]
1. The act of passing; passage through or over.
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In France you are now . . . in the transit from one
form of government to another. --Burke.
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2. The act or process of causing to pass; conveyance; as, the
transit of goods through a country.
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3. A line or route of passage or conveyance; as, the
Nicaragua transit. --E. G. Squier.
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4. (Astron.)
(a) The passage of a heavenly body over the meridian of a
place, or through the field of a telescope.
(b) The passage of a smaller body across the disk of a
larger, as of Venus across the sun's disk, or of a
satellite or its shadow across the disk of its
primary.
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5. An instrument resembling a theodolite, used by surveyors
and engineers; -- called also transit compass, and
surveyor's transit.
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Note: The surveyor's transit differs from the theodolite in
having the horizontal axis attached directly to the
telescope which is not mounted in Y's and can be turned
completely over about the axis.
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Lower transit (Astron.), the passage of a heavenly body
across that part of the meridian which is below the polar
axis.
Surveyor's transit. See Transit, 5, above.
Transit circle (Astron.), a transit instrument with a
graduated circle attached, used for observing the time of
transit and the declination at one observation. See
Circle, n., 3.
Transit compass. See Transit, 5, above.
Transit duty, a duty paid on goods that pass through a
country.
Transit instrument. (Astron.)
(a) A telescope mounted at right angles to a horizontal
axis, on which it revolves with its line of
collimation in the plane of the meridian, -- used in
connection with a clock for observing the time of
transit of a heavenly body over the meridian of a
place.
(b) (Surv.) A surveyor's transit. See Transit, 5, above.
Transit trade (Com.), the business conected with the
passage of goods through a country to their destination.
Upper transit (Astron.), the passage of a heavenly body
across that part of the meridian which is above the polar
axis.
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transit instrument
(wn) | transit instrument
n 1: a telescope mounted on an axis running east and west and
used to time the transit of a celestial body across the
meridian |
| | podobné slovo | definícia |
transit instrument
(encz) | transit instrument, n: |
Prime-vertical transit instrument
(gcide) | Prime \Prime\, a. [F., fr. L. primus first, a superl.
corresponding to the compar. prior former. See Prior, a.,
Foremost, Former, and cf. Prim, a., Primary,
Prince.]
1. First in order of time; original; primeval; primitive;
primary. "Prime forests." --Tennyson.
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She was not the prime cause, but I myself. --Milton.
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Note: In this sense the word is nearly superseded by
primitive, except in the phrase prime cost.
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2. First in rank, degree, dignity, authority, or importance;
as, prime minister. "Prime virtues." --Dryden.
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3. First in excellence; of highest quality; as, prime wheat;
a prime quality of cloth.
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4. Early; blooming; being in the first stage. [Poetic]
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His starry helm, unbuckled, showed him prime
In manhood where youth ended. --Milton.
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5. Lecherous; lustful; lewd. [Obs.] --Shak.
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6. Marked or distinguished by a mark (') called a prime mark.
Note: In this dictionary the same typographic mark is used to
indicate a weak accent in headwords, and minutes of a
degree in angle measurements.
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7. (Math.)
(a) Divisible by no number except itself or unity; as, 7
is a prime number.
(b) Having no common factor; -- used with to; as, 12 is
prime to 25.
[Webster 1913 Suppl.]
Prime and ultimate ratio. (Math.). See Ultimate.
Prime conductor. (Elec.) See under Conductor.
Prime factor (Arith.), a factor which is a prime number.
Prime figure (Geom.), a figure which can not be divided
into any other figure more simple than itself, as a
triangle, a pyramid, etc.
Prime meridian (Astron.), the meridian from which longitude
is reckoned, as the meridian of Greenwich or Washington.
Prime minister, the responsible head of a ministry or
executive government; applied particularly to that of
England.
Prime mover. (Mech.)
(a) A natural agency applied by man to the production of
power. Especially: Muscular force; the weight and
motion of fluids, as water and air; heat obtained by
chemical combination, and applied to produce changes
in the volume and pressure of steam, air, or other
fluids; and electricity, obtained by chemical action,
and applied to produce alternation of magnetic force.
(b) An engine, or machine, the object of which is to
receive and modify force and motion as supplied by
some natural source, and apply them to drive other
machines; as a water wheel, a water-pressure engine, a
steam engine, a hot-air engine, etc.
(c) Fig.: The original or the most effective force in any
undertaking or work; as, Clarkson was the prime mover
in English antislavery agitation.
Prime number (Arith.), a number which is exactly divisible
by no number except itself or unity, as 5, 7, 11.
Prime vertical (Astron.), the vertical circle which passes
through the east and west points of the horizon.
Prime-vertical dial, a dial in which the shadow is
projected on the plane of the prime vertical.
Prime-vertical transit instrument, a transit instrument the
telescope of which revolves in the plane of the prime
vertical, -- used for observing the transit of stars over
this circle.
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transit instrument
(wn) | transit instrument
n 1: a telescope mounted on an axis running east and west and
used to time the transit of a celestial body across the
meridian |
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