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A reddish brown or violet crystalline substance, C16H12O6, got from hematoxylin by partial oxidation, and regarded as analogous to the phthaleins.

A bluish black, amorphous substance containing iron and obtained from blood. It exists the red blood corpuscles united with globulin, and the form of hemoglobin or oxyhemoglobin gives to the blood its red color.

Any substance, such as an iron salt or organic compound containing iron, which when ingested tends to increase the hemoglobin contents of the blood.

An albuminous substance formed in gastric digestion, and by the action of boiling dilute acids on albumin. It is readily convertible into hemipeptone. Called also hemialbumin.

A substance, in the form of reddish brown, microscopic, prismatic crystals, formed from dried blood by the action of strong acetic acid and common salt; -- called also Teichmann's crystals. Chemically, it is a hydrochloride of hematin.

An insoluble, proteid substance, described by Schützenberger, formed when albumin is heated for some time with dilute sulphuric acid. It is apparently identical with antialbumid and dyspeptone.

Pertaining to, or designating, a brown resinous substance resembling tannin, and extracted from the henna plant; as, hennotannic acid.

Liver of sulphur; a substance of a liver-brown color, sometimes used in medicine. It is formed by fusing sulphur with carbonates of the alkalies (esp. potassium), and consists essentially of alkaline sulphides. Called also hepar sulphuris (.

Conversion into a substance resembling the liver; a state of the lungs when gorged with effused matter, so that they are no longer pervious to the air.

The sulphate of iodoquinine, a substance crystallizing in thin plates remarkable for their effects in polarizing light.

A white, crystalline substance having a sweetish taste, obtained by the decomposition of hesperidin, and regarded as a complex derivative of caffeic acid.

side found in ripe and unripe fruit (as the orange), and extracted as a white crystalline substance.

ent characteristics and properties; the relation existing between derivatives of the same substance, or of the analogous members of different series; as, ethane, ethyl alcohol, acetic aldehyde, and acetic acid are in heterology with each other, though each in at the same time a member of a distinct homologous series. C…

One of those Arians who held that the Son was of a different substance from the Father.

Obtained from the urine of horses; as, hippuric acid. Hippuric acid, a white crystalline substance, containing nitrogen, present in the urine of herbivorous animals, and in small quantity in human urine. By the action of acids, it is decomposed into benzoic acid and glycocoll.

btained from mutton suet, and to which he attributed the peculiar taste and smell of that substance. The substance has also been called hircin. Watts.

Having an empty space or cavity, natural or artificial, within a solid substance; not solid; excavated in the interior; as, a hollow tree; a hollow sphere. Hollow with boards shalt thou make it. Ex. xxvii. 8..

rians of the 4th century, who held that the Son was of like, but not the same, essence or substance with the Father; -- opposed to homoousian.

The correspondence or resemblance of substances belonging to the same type or series; a similarity of composition varying by a small, regular difference, and usually attended by a regular variation in physical properties; as, there is an homology between methane, CH4, ethane, C2H6, propane, C3H8, etc., all members of t…

ntury, who accepted the Nicene creed, and maintained that the Son had the same essence or substance with the Father; -- opposed to homoiousian.