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noun Biochemistry.
  1. a white, crystalline, water-soluble solid, C3H6O3, that is an intermediate in carbohydrate metabolism and yields glycerol on reduction.

Origin of glyceraldehyde

First recorded in 1880–85; glycer(in) + aldehyde
Also called glyceric aldehyde.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
glyceraldehyde in Medicine


  1. A sweet colorless crystalline solid that is an intermediate compound in carbohydrate metabolism.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

glyceraldehyde in Science


  1. A sweet colorless syrupy liquid that is an intermediate compound in carbohydrate metabolism. Chemical formula: C3H6O3.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.