Search the Dictionary

Certain prayers to be repeated at stated times of the day, as matins and vespers.

ous substance, extracted from vegetable mold, and also produced by the action of acids on certain sugars and carbohydrates; -- called also humic acid, ulmin, gein, ulmic or geic acid, etc.

Of or pertaining to certain non-fossiliferous rocks on the borders of Lake Huron, which are supposed to correspond in time to the latter part of the Archæan age.

The external covering or envelope of certain fruits or seeds; glume; hull; rind; in the United States, especially applied to the covering of the ears of maize.

cif., a court held in London, before the lord mayor, recorder, and sheriffs, to determine certain classes of suits for the recovery of lands within the city. In the progress of law reform this court has become unimportant. Mozley & W.

One of a group of crystalline bodies produced by the action of ammonia on certain aldehydes.

med by the union of water with some other substance, generally forming a neutral body, as certain crystallized salts.

of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a pecul…

A white, crystalline, nitrogenous hydrocarbon, C9H9NO, obtained from certain derivatives of cinnamic acid and closely related to quinoline and carbostyril.

One of the flat, leaflike, protective zooids, covering other zooids of certain Siphonophora.

Eating green shoots, as certain insects do.

The spore-bearing surface of certain fungi, as that on the gills of a mushroom.

perbolical expression. "This hyperbolical epitaph." Fuller. Hyperbolic functions (Math.), certain functions which have relations to the hyperbola corresponding to those which sines, cosines, tangents, etc., have to the circle; and hence, called hyperbolic sines, hyperbolic cosines, etc. -- Hyperbolic logarithm. See Lo…

A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface. Hyperboloid of revolution, an hyperboloid described by an hyperbola revolving about one of its axes. The surface has two separate sheets when the axis of revolution is the transverse axis, bu…

A kind of metamorphosis, in certain insects, in which the larva itself undergoes remarkable changes of form and structure during its growth.

tion, by gazing steadly at a very bright object held before the eyes, or by pressure upon certain points of the surface of the body.

An appendage or fold on the lower side of the pharynx, in certain insects.

A tentative theory or supposition provisionally adopted to explain certain facts, and to guide in the investigation of others; hence, frequently called a working hypothesis.

A suffix, denoting that the element indicated enters into certain compounds with its highest valence, or with a valence relatively higher than in compounds where the name of the element ends in -ous; as, ferric, sulphuric. It is also used in the general sense of pertaining to; as, hydric, sodic, calcic.…

Fish glue; isinglass; a glue prepared from the sounds of certain fishes.