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angstrom unit, symbol: A or Å
A length equal to 10
-10 meters or one-ten-millionth of a millimeter, used for atomic measurements and the wavelengths of electromagnetic radiation.
A unit that measures the wavelength of light and equals 0.00000001 of a centimeter. Blue light has a wavelength of about 4400 angstroms, yellow light 5500 angstroms, and red light 6500 angstroms.
angstrom, symbol Å
(s) (noun), angstroms
(pl)A unit of length equal to one ten-billionth of a meter (10
meters or one-ten-millionth of a millimeter): The angstrom is used to measure the wavelengths of electromagnetic radiation.
It was named after Anders Jonas Ångström (1814-1874), a Swedish astrophysicist.
Word Entries containing the term:
“symbol”
Amphora: The word and the @ symbol
Greek > Latin: @ two-handled; a vessel with two handles or ears; a pitcher or vase
unit.
brewster, symbol B
(s) (noun), brewsters
(pl)A unit for measuring the reaction of optical materials to stress: Brewster is defined in terms of the slowing down of light passing through the material when it is stretched or compressed.
candela, symbol cd
(s) (noun), candelas
(pl)An SI unit of luminous intensity: The
candela replaced the old units of candle and standard candle.
Candela measures the brightness of a light itself rather than the amount of light falling on an object, which iC called "illuminance" and measured in "lux".
centimeter, symbol cm
(s) (noun), centimeters
(pl)A metric unit of length equal to one hundredth of a meter: Joe measured his son's height that turned out to be 70 centimeters.
coulomb, symbol C
(s) (noun), coulombs
(pl)An SI unit of electrical charge: One coulomb is the quantity of electricity conveyed by a current of one ampere in one second.
cubic centimeter, symbol cc
(s) (noun), cubic centimeters
(pl)A metric unit of volume equal to one thousandth of a liter: A
cubic centimeter is a unit of capacity, being that of a cube each side of which measures one centimeter and equal to one milliliter.
A cubic centimeter is used to measure liquid medications or for little amounts of fluids.
curie, symbol Ci
(s) (noun), curies
(pl)The basic unit of radioactivity named after Marie Curie: A
curie is equal to the radioactivity emitted by a gram of radium, or 37 billion disintegrations per second.
The Three Mile Island nuclear accident released about 50 curies.
Currie was a former unit of radioactivity, equal to 3.7 x 1010 becquerels (radioactive disintegrations).
One gram of radium has a radioactivity of about one curie.
