An unsaturated primary alcohol derived from the hydrolysis of chlorophyll; a constituent of vitamins E and K1. SYN: phytyl alcohol.
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phy·tol 'fī-.tȯl, -.tōl n an oily aliphatic primary alcohol C20H39OH obtained by hydrolysis of chlorophyll and used in synthesizing vitamin E and vitamin K1
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phy·tol (fiґtol) an unsaturated aliphatic alcohol related to xanthophyll, to the carotenoids, and to vitamin A, that exists in chlorophyll as an ester; used in the preparation of vitamin E and phytonadione.Medical dictionary. 2011.