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air
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n 1: a mixture of gases (especially oxygen) required for
breathing; the stuff that the wind consists of; "air
pollution"; "a smell of chemicals in the air"; "open a
window and let in some air"; "I need some fresh air"
2: the region above the ground; "her hand stopped in mid air";
"he threw the ball into the air"
3: a distinctive but intangible quality surrounding a person or
thing; "an air of mystery"; "the house had a neglected air";
"an atmosphere of defeat pervaded the candidate's
headquarters"; "the place had an aura of romance" [syn:
air, aura, atmosphere]
4: a slight wind (usually refreshing); "the breeze was cooled by
the lake"; "as he waited he could feel the air on his neck"
[syn: breeze, zephyr, gentle wind, air]
5: the mass of air surrounding the Earth; "there was great heat
as the comet entered the atmosphere"; "it was exposed to the
air" [syn: atmosphere, air]
6: once thought to be one of four elements composing the
universe (Empedocles)
7: a succession of notes forming a distinctive sequence; "she
was humming an air from Beethoven" [syn: tune, melody,
air, strain, melodic line, line, melodic phrase]
8: medium for radio and television broadcasting; "the program
was on the air from 9 til midnight"; "the president used the
airwaves to take his message to the people" [syn: air,
airwave]
9: travel via aircraft; "air travel involves too much waiting in
airports"; "if you've time to spare go by air" [syn: air
travel, aviation, air]
v 1: expose to fresh air; "aerate your old sneakers" [syn: air
out, air, aerate]
2: be broadcast; "This show will air Saturdays at 2 P.M."
3: broadcast over the airwaves, as in radio or television; "We
cannot air this X-rated song" [syn: air, send,
broadcast, beam, transmit]
4: make public; "She aired her opinions on welfare" [syn:
publicize, publicise, air, bare]
5: expose to warm or heated air, so as to dry; "Air linen"
6: expose to cool or cold air so as to cool or freshen; "air the
old winter clothes"; "air out the smoke-filled rooms" [syn:
vent, ventilate, air out, air]
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amateur
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adj 1: engaged in as a pastime; "an amateur painter"; "gained
valuable experience in amateur theatricals";
"recreational golfers"; "reading matter that is both
recreational and mentally stimulating"; "unpaid extras in
the documentary" [syn: amateur, recreational,
unpaid]
2: lacking professional skill or expertise; "a very amateurish
job"; "inexpert but conscientious efforts"; "an unskilled
painting" [syn: amateurish, amateur, inexpert,
unskilled]
n 1: someone who pursues a study or sport as a pastime
2: an athlete who does not play for pay [ant: pro,
professional]
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calorimeter
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n 1: a measuring instrument that determines quantities of heat
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diameter
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n 1: the length of a straight line passing through the center of
a circle and connecting two points on the circumference
[syn: diameter, diam]
2: a straight line connecting the center of a circle with two
points on its perimeter (or the center of a sphere with two
points on its surface)
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dosimeter
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n 1: a measuring instrument for measuring doses of ionizing
radiation (X-rays or radioactivity) [syn: dosemeter,
dosimeter]
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gravimeter
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n 1: a measuring instrument for determining the specific gravity
of a liquid or solid [syn: hydrometer, gravimeter]
2: a measuring instrument for measuring variations in the
gravitational field of the earth [syn: gravimeter, gravity
meter]
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hexameter
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n 1: a verse line having six metrical feet
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limiter
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n 1: (electronics) a nonlinear electronic circuit whose output
is limited in amplitude; used to limit the instantaneous
amplitude of a waveform (to clip off the peaks of a
waveform); "a limiter introduces amplitude distortion"
[syn: limiter, clipper]
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parameter
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n 1: a constant in the equation of a curve that can be varied to
yield a family of similar curves [syn: parameter,
parametric quantity]
2: any factor that defines a system and determines (or limits)
its performance
3: (computer science) a reference or value that is passed to a
function, procedure, subroutine, command, or program [syn:
argument, parameter]
4: a quantity (such as the mean or variance) that characterizes
a statistical population and that can be estimated by
calculations from sample data
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pentameter
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n 1: a verse line having five metrical feet
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perimeter
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n 1: the boundary line or the area immediately inside the
boundary [syn: margin, border, perimeter]
2: a line enclosing a plane areas
3: the size of something as given by the distance around it
[syn: circumference, perimeter]
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scimitar
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n 1: a curved oriental saber; the edge is on the convex side of
the blade
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telemeter
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n 1: any scientific instrument for observing events at a
distance and transmitting the information back to the
observer
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tetrameter
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n 1: a verse line having four metrical feet
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polarimeter
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n 1: an optical device used to measure the rotation of the plane
of vibration of polarized light [syn: polarimeter,
polariscope]
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ayr
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n 1: a port in southwestern Scotland
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planimeter
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n 1: a measuring instrument for measuring the area of an
irregular plane figure [syn: integrator, planimeter]
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tachymeter
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n 1: a theodolite designed for rapid measurements [syn:
tachymeter, tacheometer]
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tensimeter
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n 1: a manometer for measuring vapor pressure
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colorimeter
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n 1: a measuring instrument used in colorimetric analysis to
determine the quantity of a substance from the color it
yields with specific reagents [syn: colorimeter,
tintometer]
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alkalimeter
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heptameter
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ayer
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aer
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ayre
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dimeter
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pulsimeter
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acidimeter
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vaporimeter
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velocimeter
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