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trichogyne
trichoid
trichology
trichome
trichomonad
trichomoniasis
trichopteran
trichotomy
trichroism
trichromat
trichromatic
trichuriasis
trick
trick or treat
trick out
trickery
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trichroism

tri·chro·ism [ tr krō ìzzəm ]


noun 
Definition:
 
displaying of 3 colors: the property possessed by some crystals of showing three different colors when viewed along each of their three axes

[Mid-19th century. < Greek trikhroos "three-colored"]

tri·chro·ic [ trī krṓ ik ] adjective
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