noun
a word that represents a person, place, thing, or idea
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The scientist used an achromatic prism to separate the different wavelengths of light for analysis.
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I found this cool achromatic prism that can split light into its different colors.
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Check out this achromatic prism, it's like magic for light!
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The achromatic prism acted as a metaphorical bridge between science and art in the exhibit.