from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A ptomaine, related to choline, formed during putrefaction of biological tissues
from the GNU version of the Collaborative International Dictionary of English
- n. A poisonous organic base (a ptomaine) formed in the decomposition of protagon with boiling baryta water, and in the putrefaction of proteid matter. It was for a long time considered identical with choline, a crystalline body originally obtained from bile. Chemically, however, choline is oxyethyl-trimethyl-ammonium hydroxide, while neurine is vinyl-trimethyl-ammonium hydroxide.
from The Century Dictionary and Cyclopedia
- n. A ptomaine, and possibly also a leucomaine, having the formula (CH3)3.C2H3.NOH. It has decided toxic properties.
- n. A basic substance having the formula (CH3)3.C2H4.OH.NOH: same as choline.
- n. The substance of which nervetissue is composed, consisting chiefly of fat and albumin containing phosphorus.
- n. An extract made from nerve-tissue, employed therapeutically.
Sorry, no etymologies found.
New unpublished researches into this problem have shown that it closely resembles neurine,  a body which I hope will speedily lead us to the complete synthesis of atropine.
They are probably allied to neurine, an alkaloid obtained from the brain and also from the bile.
The change may have progressed insidiously and stealthily, having slowly and almost imperceptibly induced important molecular modifications in the delicate vesicular neurine of the brain, ultimately resulting in some aberration of the ideas, alteration of the affections, or perversion of the propensities or instincts ....
It presents to view in the third month three vesicles of soft neurine, the one which is to form the cerebellum being larger than that which is to become the cerebrum.
It must not, however, be supposed that the neurine or nervous matter is really absent in these races.