'Syntonin' definitions:
- Syntonin \Syn"to*nin\, n. [Cf. Gr. ? stretched tight, intense.]
(Physiol. Chem.)
A proteid substance (acid albumin) formed from the albuminous
matter of muscle by the action of dilute acids; -- formerly
called musculin. See Acid albumin, under Albumin.
[1913 Webster]