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Webster 1913 Edition

Noun.

[Cf. Gr. [GREEK] 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

syntonin ‎(countable and uncountable, plural syntonins)

(obsolete, biochemistry) A form of fibrin found in muscle tissue, or produced by the action of acids on myosin

syntonin in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913