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Definition of Phytyl
1. Noun. (organic chemistry especially in combination) The univalent radical derived from phytol ¹
¹ Source: wiktionary.com
Medical Definition of Phytyl
1. The radical, -CH2-CH==C(CH3)-CH2-[-CH2-CH2-CH(CH3)-CH2-]-3H, found in phylloquinone (vitamin K1); a tetraprenyl radical, reduced in 3 of the 4 prenyl groups. (05 Mar 2000)