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pheophytin

noun pheo·phy·tin
variants: or British phaeophytin play \ˌfē-ə-ˈfīt-ᵊn\
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medical Definition of pheophytin

: a bluish black waxy pigment that can be formed from chlorophyll by replacement of the magnesium with two hydrogen atoms by treatment with a weak acid (as oxalic acid)

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