lipid

[lip-id, lahy-pid]
noun Biochemistry.
any of a group of organic compounds that are greasy to the touch, insoluble in water, and soluble in alcohol and ether: lipids comprise the fats and other esters with analogous properties and constitute, with proteins and carbohydrates, the chief structural components of living cells.
Also, lipide [lip-ahyd, -id, lahy-pahyd, -pid] .


Origin:
1920–25; lip- + -id3

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To lipids
Collins
World English Dictionary
lipid or lipide (ˈlaɪpɪd, ˈlɪpɪd, ˈlaɪpɪd, ˈlɪpɪd)
 
n
biochem Former name: lipoid any of a large group of organic compounds that are esters of fatty acids (simple lipids, such as fats and waxes) or closely related substances (compound lipids, such as phospholipids): usually insoluble in water but soluble in alcohol and other organic solvents. They are important structural materials in living organisms
 
[C20: from French lipide, from Greek lipos fat]
 
lipide or lipide
 
n
 
[C20: from French lipide, from Greek lipos fat]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

lipid
"organic substance of the fat group," from Fr. lipide, coined 1923 by G. Bertrand from Gk. lipos "fat, grease" (see leave (v.)) + chemical suffix -ide.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

lipid lip·id (lĭp'ĭd, lī'pĭd) or lip·ide (lĭp'īd', lī'pīd')
n.
Any of a group of organic compounds, including the fats, oils, waxes, sterols, and triglycerides, that are insoluble in water but soluble in common organic solvents, are oily to the touch, and together with carbohydrates and proteins constitute the principal structural material of living cells.


lip·id'ic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
lipid   (lĭp'ĭd)  Pronunciation Key 
Any of a large group of organic compounds that are oily to the touch and insoluble in water. Lipids include fatty acids, oils, waxes, sterols, and triglycerides. They are a source of stored energy and are a component of cell membranes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary
lipids [(lip-idz, leye-pidz)]

A group of organic molecules that includes fats, oils, and waxes. Lipids do not dissolve in water. In animals, including humans, lipids store energy and form parts of cell structures, such as cell membranes.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Example sentences
Xanthomas are common, particularly among older adults and people with high
  blood lipids.
The animals were first given an unbalanced diet, skewed in favor of either
  lipids or protein.
When the ultrasound is removed, the lipids quickly reorder themselves and
  restore the skin's impermeability, he said.
Lipids are a broad group of molecules such as fats and waxes that don't
  dissolve in water.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature