Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of a group of sterols that occur in high concentrations in certain plants and are used in the synthesis of steroid hormones.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry Any of a range of plant sterols used to prepare steroid hormones

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek sītos, food, grain + sterol.]

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