Hy"gro*plasm\, n. [Gr. ? wet + ? form, mold.] (Biol.) The fluid portion of the cell protoplasm, in opposition to stereoplasm, the solid or insoluble portion. The latter is supposed to be partly nutritive and partly composed of idioplasm.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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