from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A central, less viscous portion of the cytoplasm that is distinguishable in certain cells, especially motile cells.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The inner portion of the cytoplasm of a cell
from the GNU version of the Collaborative International Dictionary of English
- n. The protoplasm in the interior of a cell.
from The Century Dictionary and Cyclopedia
- n. In botany, the inner granular and somewhat fluid part of the protoplasm of a cell, as distinct from the ectoplasm.
- n. In zoology, the interior protoplasm or sarcodous substance of a protozoan, as a rhizopod, as distinguished from the ectoplasm: same as endosarc. Also called chyme-mass, parenchyma.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the inner portion of the cytoplasm of a cell
Sorry, no etymologies found.
In this condition ectoplasm and endoplasm could be made out with the clearest definition.
Like the latter, there is one caudal bristle, but unlike it there is only one posterior contractile vacuole, while the endoplasm is filled with large granules or food balls.
The endoplasm usually, but not always, contains a bright red eye-spot.
The endoplasm is evenly granular, with a number of large ingested food bodies.
In some cases ectoplasm and endoplasm can be distinguished.
The endoplasm contains a number of large refringent granules -- probably body products.
In this form (fig. 5) there is no distinction between ectoplasm and endoplasm, and there is an entire absence of vacuoles.
The body is globular with but slight differentiation into ectoplasm and endoplasm; one nucleus in the latter; contractile vacuoles one or many; pseudopodia on all sides, thin, and with peripheral granule-streaming; surrounded by a globular, rather thick coat of jelly, which is hyaline inside and granular on the periphery.
The endoplasm is finely granular with, however, larger food particles in the process of digestion, while specimens are occasionally seen with the natural form completely lost through distortion caused by over-large captures (Cf. also Wrzesniowski '70, p. XXIII, fig. 32).
Genus ACTINOPHRYS Ehr. The body is spherical and differentiated into granular endoplasm and vacuolated ectoplasm, but the zones are not definitely separated.