chro·​ma·​tol·​y·​sis | \ ˌkrō-mə-ˈtä-lə-səs How to pronounce chromatolysis (audio) \

Definition of chromatolysis

: the dissolution and breaking up of chromophil material (such as chromatin) of a cell and especially a nerve cell

Other Words from chromatolysis

chromatolytic \ krō-​ˌma-​tə-​ˈli-​tik How to pronounce chromatolytic (audio) , krə-​ \ adjective

First Known Use of chromatolysis

1901, in the meaning defined above

History and Etymology for chromatolysis

borrowed from French chromatolyse, from chromato- chromato- + -lyse -lysis

Note: Term introduced by the Romanian neurologist Georges Marinesco (Gheorghe Marinescu, 1863-1938), probably first in "Des polynévrites en rapport avec les lésions secondaires et les lésions primitives des cellules nerveuses," Revue neurologique, tome 4 (1896), p. 133.

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The first known use of chromatolysis was in 1901

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Cite this Entry

“Chromatolysis.” Dictionary, Merriam-Webster, Accessed 20 Feb. 2020.

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More Definitions for chromatolysis


chro·​ma·​tol·​y·​sis | \ ˌkrō-mə-ˈtäl-ə-səs How to pronounce chromatolysis (audio) \
plural chromatolyses\ -​ˌsēz How to pronounce chromatolyses (audio) \

Medical Definition of chromatolysis

: the dispersal of Nissl substance in the cell body of a neuron resulting from axonal stress (as that induced by injury or neurodegenerative disease)

Other Words from chromatolysis

chromatolytic \ krō-​ˌmat-​ᵊl-​ˈit-​ik, krə-​ How to pronounce chromatolytic (audio) \ adjective

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