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spec·tro·pho·tom·e·ter
 spectrophotometer
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- pronunciation:
- spek
tro
f
ta
m
tr
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noun |
| definition: |
an instrument that measures how much light is absorbed, transmitted, or produced by an object or chemical as a function of wavelength.
A spectrophotometer was used to measure the amount of light produced by luciferase, an enzyme that makes fireflies glow. |
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