[suh-mat-uh-plaz-uh m, soh-muh-tuh-]

noun Cell Biology.

the cytoplasm of a somatic cell, especially as distinguished from germ plasm.

Origin of somatoplasm

Related formsso·ma·to·plas·tic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for somatoplasm

Historical Examples of somatoplasm

  • In these higher animals this protoplasm is known as germplasm, that in body cells as somatoplasm.

    Taboo and Genetics

    Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard

  • The somatoplasm can only in the most general way affect the self-perpetuating, close corporation of the germ-plasm.

  • The somatoplasm arises from, and hence must be regarded as a modification of, the germ-plasm.

  • The germ-plasm can increase indefinitely in the lapse of generations, increase of the somatoplasm is limited.

  • From this point of view every individual consists of only two parts,—germ-plasm and soma or somatoplasm.

    Applied Eugenics

    Paul Popenoe and Roswell Hill Johnson

British Dictionary definitions for somatoplasm



  1. the protoplasm of a somatic cell
  2. the somatic cells collectivelyCompare germ plasm
Derived Formssomatoplastic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

somatoplasm in Medicine


[sō-mătə-plăz′əm, sōmə-tə-]


The entirety of specialized protoplasm, other than germ plasm, constituting the body.
The protoplasm of a somatic cell.
Related formsso′ma•to•plastic (sō′mə-tə-plăstĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.