from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The cell body of a neuron, containing the nucleus and organelles.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The cell body of a neuron or of an odontoblast
from The Century Dictionary and Cyclopedia
- n. The cell-body or cytoplasm of a nerve-cell, or neurone, as distinguished from its nucleus and its processes, the dendrites and neuraxon. The perikaryon consists of a twofold substance — an achromatic, fibrillar spongioplasm, regarded as conductive in function, and a trophoplasmic ground-substance, regarded as the seat of metabolic chemical changes.
CWD infection was confirmed in all cases by the presence of histologic lesions in the brain including spongiform degeneration of the perikaryon, the immunohistochemical detection of disease-associated PrP in brain and tonsil, or by immunoblotting of protease-resistant, disease associated PrP (CerPrPSc).