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wool fat or wool grease that is refined and incorporated into many commercial preparations. Lanolin is a by-product of the process that accompanies the removal of sheep's wool from the pelt. In its crude form it is a greasy yellow wax of unpleasant odor. This odor disappears when the lanolin is emulsified and made into salves, creams, ointments, and cosmetics. Although lanolin is slightly antiseptic, it has no other medicinal benefits and is valuable principally because of the ease with which it penetrates the skin, and because it does not turn rancid. Modified lanolin has been additionally processed to reduce the amount of free lanolin alcohols and detergent and pesticide residues.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
the greasy substance obtained from the wool of the sheep Ovis aries (family Bovidae). Used as an emollient base for creams and ointments.
[L. fat of wool]
Farlex Partner Medical Dictionary © Farlex 2012
A fatty substance obtained from wool and used in soaps, cosmetics, and ointments. Also called wool fat.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
a·deps la·nae(ad'eps lā'nē)
The greasy substance obtained from the wool of the sheep Ovis aries (family Bovidae); used as an emollient base for creams and ointments.
[L. fat of wool]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
lanolinA mixture of esters of fatty acids derived from animal skin secretions on wool. Lanolin is used, in conjunction with other ingredients such as zinc oxide, to form various soothing skin ointments.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005