Defn: A morbid growth or deposit of bony matter and at the sides of the coronet and coffin bone of a horse. J. H. Walsh.

SIDE-CHAIN THEORY
Side"-chain` the`o*ry. (Physiol. Chem.)

Defn: A theory proposed by Ehrlich as a chemical explanation of immunity phenomena. In brief outline it is as follows: Animal cells and bacteria are complex aggregations of molecules, which are themselves complex. Complex molecules react with one another through certain of their side chains, but only when these side chains have a definite correspondence in structure (this account for the specific action of antitoxins).

SIDED
Sid"ed, a.

Defn: Having (such or so many) sides; — used in composition; as, one-sided; many-sided.

SIDEFLASH
Side"flash`, n. (Elec.)

Defn: A disruptive discharge between a conductor traversed by an oscillatory current of high frequency (as lightning) and neighboring masses of metal, or between different parts of the same conductor.

SIDEHILL
Side"hill`, n.

Defn: The side or slope of a hill; sloping ground; a descent. [U. S.]

SIDE LINE
Side line.