• Webster's Revised Unabridged Dictionary
    • n Nuclein (Physiol. Chem) A constituent of the nuclei of all cells, containing protein and nucleic acid. It is a colorless amorphous substance, readily soluble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur.
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Century Dictionary and Cyclopedia
    • n nuclein The phosphorized nitrogenous constituent of cell-nuclei. It is found in two modifications, the one soluble in alkali carbonates and hydroxids, the other insoluble in carbonates and only slowly soluble ill hydroxids. It is probably a mixture of organic phosphorus compounds with various proteids.
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Chambers's Twentieth Century Dictionary
    • ns Nuclein a colourless amorphous proteid, a constituent of cell-nuclei
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Chambers's Twentieth Century Dictionary
L.,—nux, nucis, a nut.


In literature:

The nucleins have the peculiarity of acting as ferments or enzymes for their own synthesis.
"Darwin and Modern Science" by A.C. Seward and Others
Yeast yields a free supply of what is called nuclein and nucleinic acid.
"The Healthy Life, Vol. V, Nos. 24-28" by Various
One of the German chemists is convinced that the nuclein in the nucleus of the cell is not a very complicated compound.
"The Meaning of Evolution" by Samuel Christian Schmucker
The nucleoproteins are composed of simple proteins and nuclein.
"Dietetics for Nurses" by Fairfax T. Proudfit
This output is chiefly obtained from food rich in nucleins and in collagenous matters, i.e.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3" by Various
Ferratogen is prepared from ferric nuclein.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 7" by Various

In science:

Going through the binding energy systematics of neutron rich nuclei one notices that as the number of α’s increases along with the neutrons, each 4H e + 2n pair tends to behave like a cluster of two 3 H2 nuclein .
New evidence for triton and helion clustering in nuclei