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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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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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delimiter
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heptameter
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dimeter
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pulsimeter
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vaporimeter
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velocimeter
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