syntonin Chem.
(ˈsɪntənɪn)
[f. Gr. σύντονος syntonous + -in.]
An acid albuminous substance found in muscular tissue, or produced from myosin by the action of acids.
| 1859 Carpenter Anim. Phys. i. 33 The substance of which muscles are composed has been commonly considered to be Fibrin, but it differs essentially from fibrin in its properties, and is now distinguished as Syntonin. 1872 Huxley Physiol. vi. 134 The Syntonin which is the chief constituent of muscle and flesh. 1881 Mivart Cat 125 About 15 per cent. of the remaining fourth [of the substance of muscle] is found, after death, to consist of an albuminoid substance called syntonin, or muscle fibrin. |