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Pertaining to the Ionic order of architecture, one of the three orders invented by the Greeks, and one of the five recognized by the Italian writers of the sixteenth century. Its distinguishing feature is a capital with spiral volutes. See Illust. of Capital. Ionic dialect (Gr. Gram.), a dialect of the Greek language,…

Without ganglia.

Containing two equivalents of sulphur; as, dithionic acid. Dithionic acid (Chem.), an unstable substance, H2S2O6, known only in its solutions, and in certain well-defined salts.

Pertaining to, derived from, or designating, an acid so called. Ethionic acid (Chem.), a liquid derivative of ethylsulphuric and sulphuric (thionic) acids, obtained by the action of sulphur trioxide on absolute alcohol.

Pertaining to, containing, or consisting of, ganglia or ganglion cells; as, a ganglionic artery; the ganglionic columns of the spinal cord.

l; -- sometimes in a bad sense. -- His`tri*on"ic*al*ly, adv. Tainted with false and histrionic feeling. De Quincey.

The histronic art; stageplaying. W. Black.

Between and uniting the nervous ganglions; as, interganglionic cords.

Pertaining to, derived from, or designating, an acid, HO.C2H4.SO3H, obtained as an oily or crystalline substance, by the action of sulphur trioxide on alcohol or ether. It is derivative of sulphuric acid.

Of, pertaining to, or designating, a sulphonic (thionic) acid derivative of methane, obtained as a stable white crystalline substance, CH2.(SO3H)2, which forms well defined salts.

Pertaining to an acid now called sulphovinic, or ethyl sulphuric, acid.

An ode in honor of a victor in the Olympic games. [R.] Johnson.

Pertaining to, or designating, an acid of sulphur obtained by leading hydrogen sulphide into a solution of sulphur dioxide; -- so called because it contains five atoms of sulphur.

Surrounding a ganglion; as, the periganglionic glands of the frog.

um lactate, etc., and is obtained as a colorless liquid having a sharp, pungent odor. Propionic acid is so called because it is the first or lowest member of the fatty acid series whose salts have a fatty feel.

Of, pertaining to, or designating, a thionic derivative, H

or resembling sulphur; specifically, designating certain of the thio compounds; as, the thionic acids. Cf. Dithionic, Trithionic, Tetrathionic, etc.

Of or pertaining to, or designating, a certain thionic acid, H2S3O6 which is obtained as a colorless, odorless liquid.

e for a column or pilaster, described by Vitruvius, applied under the Roman Empire to the Ionic and Corinthian and "Roman Doric" orders, and imitated by the architects of the Renaissance. -- Attic faith, inviolable faith. -- Attic purity, special purity of language. -- Attic salt, Attic wit, a poignant, delicate wit…

of the sphere which is perpendicular to the plane of the circle. Hutton. -- Axis of the Ionic capital (Arch.), a line passing perpendicularly through the middle of the eye of the volute. -- Neutral axis (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the…