any of a group of four closely related viscous oils that constitute vitamin E and occur chiefly in wheat germ oil, cottonseed oil, lettuce, etc.
Origin of tocopherolfrom Classical Greek tokos, childbirth + pherein, to bear + -ol
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.
Origin of tocopherolGreek tokos offspring, childbirth ; see tek- in Indo-European roots.Greek pherein to bear, carry ; see bher-1 in Indo-European roots. -ol 1 ( tocopherols being so called because they were discovered after it was observed that rats did not reproduce when fed a diet lacking these compounds )