to·coph·er·ol (tō-kŏfə-rôl′, -rōl′)
Any of a group of closely related fat-soluble alcohols that are forms of vitamin E and that differ from the tocotrienols in having saturated side chains.
[Greek tokos, offspring, childbirth; see tek- in the Appendix of Indo-European roots + Greek pherein, to bear, carry; see bher-1 in the Appendix of Indo-European roots + -OL1 (tocopherols being so called because they were discovered after it was observed that rats did not reproduce when fed a diet lacking these compounds).]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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