Definitions

from The Century Dictionary.

  • noun A name common to several nitrogenous non-phosphorized substances obtained chemically from the brain and nerves. They are light, very hygroscopic powders, insoluble in cold alcohol or ether, but soluble in hot alcohol.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Physiol. Chem.) A nonphosphorized, nitrogenous substance, obtained from brain and nerve tissue by extraction with boiling alcohol. It is uncertain whether it exists as such in nerve tissue, or is a product of the decomposition of some more complex substance.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry, dated A non-phosphorized nitrogenous substance, obtained from brain and nerve tissue by extraction with boiling alcohol. It is uncertain whether it exists as such in nerve tissue, or is a product of the decomposition of some more complex substance.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

cerebrum +‎ -in

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