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An opening at either end of the embryonic neural canal.

A nitro derivative of methane, analogous to chloroform, obtained as a colorless oily or crystalline substance, CH.(NO2)3, quite explosive, and having well-defined acid properties.

determining the amount of nitrogen or some of its compounds in any substance subjected to analysis; an azotometer.

An explosive nitro derivative of certain sugars, analogous to nitroglycerin, gun cotton, etc.

andard, or regular form; performing the proper functions; not abnormal; regular; natural; analogical. Deviations from the normal type. Hallam.

angle of about 25º. It is not now practiced. Wilhelm. -- Oblique system of coördinates (Anal. Geom.), a system in which the coördinate axes are oblique to each other.

n bridge (Engin.), a bridge connecting the parts of an estate separated by a railroad, a canal, or an ordinary road.

A picture produced in oils by a process analogous to that of lithographic printing.

An analogous mass of protoplasm in the ovule of a flowering plant; an embryonic vesicle. Goodale.

mic oxide. Osmic acid. (Chem.) (a) Osmic tetroxide. [Obs.] (b) Osmic acid proper, an acid analogous to sulphuric acid, not known in the free state, but forming a well-known and stable series of salts (osmates), which were formerly improperly called osmites. -- Osmic tetroxide (Chem.), a white volatile crystalline subs…

mious chloride. [Written also osmous.] Osmious acid (Chem.), an acid derived from osmium, analogous to sulphurous acid, and forming unstable salts. It is a brown amorphous substance.

iparabola when its axis is wrapped about a circle; also, any other spiral curve having an analogy to the parabola.

ion of being equal or equivalent; A like state or degree; equality; close correspondence; analogy; as, parity of reasoning. "No parity of principle." De Quincey. Equality of length and parity of numeration. Sir T. Browne.

several parts of speech, and their relation to each other by government or agreement; to analyze and describe grammatically. Let him construe the letter into English, and parse it over perfectly. Ascham.

An American Indian game analogous to dice, probably originally a method of divination.

which is included within the outlet of the pelvis, and is traversed by the urinogenital canal and the rectum.

ning to, or designating, a yellow crystalline substance (called also perthiocyanic acid), analogous to sulphocyanic acid, but containing more sulphur.

The part of the alimentary canal between the cavity of the mouth and the esophagus. It has one or two external openings through the nose in the higher vertebrates, and lateral branchial openings in fishes and some amphibias.

An ammoniated compound of phenyl and acetamide, used as an analgesic and antipyretic. It resembles phenacetin in its therapeutic action.

A nitrogenous hydrocarbon base, C13H9N, analogous to phenanthrene and quinoline.