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ground substance

ground substance

 
noun Biology.
1.
Also called matrix. the homogeneous substance in which the fibers and cells of connective tissue are embedded.
2.
Also called hyaloplasm. the clear portion of the cell cytoplasm; cytosol.
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Origin:
1880–85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Ground substance is always a great word to know.
So is protoplasm. Does it mean:
the colloidal and liquid substance of which cells are formed, the cytoplasm and nucleus: no longer in technical use
the merging of two or more cells into a single cell
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American Heritage
Medical Dictionary

ground substance n.

  1. The amorphous intercellular material in which the cells and fibers of connective tissue are embedded, composed of proteoglycans, plasma constituents, metabolites, water, and ions present between cells and fibers. Also called matrix.

  2. See hyaloplasm.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
ground substance  

  1. The intercellular material in which the cells and fibers of connective tissue are embedded, composed largely of glycosaminoglycans, metabolites, water, and ions.

  2. The clear, fluid portion of cytoplasm as distinguished from the organelles and other cell components.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

ground substance

an amorphous gel-like substance present in the composition of the various connective tissues. It is most clearly seen in cartilage, in the vitreous humour of the eye, and in the Wharton's jelly of the umbilical cord. It is transparent or translucent and viscous in composition; the main chemical components of ground substance are large carbohydrates and proteins known as acid mucopolysaccharides, or glycoaminoglycans. See also collagen.

Learn more about ground substance with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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