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nce, HO.CH2.CO2H, has the properties both of an alcohol and an acid, and is a type of the hydroxy acids; -- called also hydroxyacetic acid.

Pertaining to, derived from, glycol and urea; as, glycoluric acid, which is called also hydantoic acid.

One of a class of carbohydrates having from three to nine atoms of carbon in the molecules and having the constitution either of an aldehyde alcohol or of a ketone alcohol. Most glycoses have hydrogen and oxygen present in the proportion to form water, while the number of carbon atoms is usually equal to the number of…

A white, crystalline, nitrogenous substance, produced by the action of hydroxylamine on glyoxal, and belonging to the class of oximes; also, any one of a group of substances resembling glyoxime proper, and of which it is a type. See Oxime.

to die; to cease; to come to an end; as, the light has gone out. Life itself goes out at thy displeasure. Addison. -- To go over. (a) To traverse; to cross, as a river, boundary, etc.; to change sides. I must not go over Jordan. Deut. iv. 22. Let me go over, and see the good land that is beyond Jordan. Deut. iii. 25. I…

g in wet places in early spring. -- Golden seal (Bot.), a perennial ranunculaceous herb (Hydrastis Canadensis), with a thick knotted rootstock and large rounded leaves. -- Golden sulphide, or sulphuret, of antimony (Chem.), the pentasulphide of antimony, a golden or orange yellow powder. -- Golden warbler (Zoöl.), a…

A reproductive bud of a hydroid; a simple gonophore.

A sexual zooid produced as a medusoid bud upon a hydroid, sometimes becoming a free hydromedusa, sometimes remaining attached. See Hydroidea, and Illusts. of Athecata, Campanularian, and Gonosome.

The reproductive zooids of a hydroid colony, collectively.

A capsule developed on certain hydroids (Thecaphora), inclosing the blastostyle upon which the medusoid buds or gonophores are developed; -- called also gonangium, and teleophore. See Hydroidea, and Illust. of Campanularian.

A sexual zooid, or medusoid bud of a hydroid; a gonophore. See Hydroidea, and Illust. of Campanularian.

roove of a pulley. Gorge circle (Gearing), the outline of the smallest cross section of a hyperboloid of revolution. -- Gorge hook, two fishhooks, separated by a piece of lead. Knight.

echinus, or the space between two neck moldings; -- called also neck of the capital, and hypotrachelium. See Illust. of Column.

stem of religious doctrine; sometimes, any system of political doctrine or social philosophy; as, this political gospel. Burke.

A hydrous oxide of iron, occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown.

density. It is equal to 15.432 grains. See Grain, n., 4. Gram degree, or Gramme degree (Physics), a unit of heat, being the amount of heat necessary to raise the temperature of one gram of pure water one degree centigrade. -- Gram equivalent (Electrolysis), that quantity of the metal which will replace one gram of hy…

qualis) which in the larval state eats the interior of grapes. -- Grape flower, or Grape hyacinth (Bot.), a liliaceous plant (Muscari racemosum) with small blue globular flowers in a dense raceme. -- Grape fungus (Bot.), a fungus (Oidium Tuckeri) on grapevines; vine mildew. -- Grape hopper (Zoöl.), a Small yellow an…

can be printed from. Prepared chalk or oxide of zinc is pressed upon a smooth plate by a hydraulic press, and the design is drawn upon this in a peculiar ink which hardens the surface wherever it is applied. The surface is then carefully rubbed or brushed, leaving the lines in relief.

und in the Silurian rocks. They belong to an extinct group (Graptolithina) supposed to be hydroids.

One of the essential principles of the hedge hyssop (Gratiola officinalis).