from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a group of predominantly unsaturated solid alcohols of the steroid group, such as cholesterol and ergosterol, present in the fatty tissues of plants and animals.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any member of a class of steroids containing a hydroxyl group in the 3-position of the A-ring; they are found in all animal and plant tissue and play an important role in hormone chemistry
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances
Short for cholesterol.(American Heritage® Dictionary of the English Language, Fourth Edition)