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esses the resultant value; usually, unless otherwise specified, it is the simple average, formed by adding the quantities together and dividing by their number, which is called an arithmetical mean. A geometrical mean is the square root of the product of the quantities.

Of or pertaining to a machine or to machinery or tools; made or formed by a machine or with tools; as, mechanical precision; mechanical products. We have also divers mechanical arts. Bacon.

tion or action. He acknowledges nothing besides matter and motion; so that all must be performed either by mechanism or accident. Bentley.

A compound of mercaptan formed by replacing its sulphur hydrogen by a metal; as, potassium mercaptide, C2H5SK.

ncluding the cavity of the mouth, and the proctod, a part at the posterior end, which are formed by invagination and are lined with epiblast.

of the teeth of wheels, or of a wheel and rack. Mesh stick, a stick on which the mesh is formed in netting.

Formed with meshes; netted.

Epithelial mesoderm; a layer of cuboidal epithelium cells, formed from a portion of the mesoderm during the differetiation of the germ layers. It constitutes the boundary of the coelum.

doctrine that flowers are homologous with leaf buds, and that the floral organs are transformed leaves.

An intermediate product formed in the gastric digestion of albuminous matter.

The act or process by which matter is taken up by cells or tissues and is transformed into other matter; in plants, the act or process by which are produced all of those chemical changes in the constituents of the plant which are not accompanied by a production of organic matter; metabolism.

One of a sect of Christians, the outgrowth of a small association called the "Holy Club," formed at Oxford University, A.D. 1729, of which the most conspicuous members were John Wesley and his brother Charles; -- originally so called from the methodical strictness of members of the club in all religious duties.…

the United States and England. The principal unit is the meter (see Meter). From this are formed the are, the liter, the stere, the gram, etc. These units, and others derived from them, are divided decimally, and larger units are formed from multiples by 10, 100, 1,000, and 10,000. The successive multiplies are designa…

Formed of small stones.

subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass. Circular, or Ring, micrometer, a metallic ring fixed in the focus of the object glass of a telescope, and used to determine differences of right ascension and declination between stars by o…

opic object, produced by throwing upon a sensitive plate the magnified image of an object formed by a microscope or other suitable combination of lenses.

pound microscope, an instrument consisting of a combination of lenses such that the image formed by the lens or set of lenses nearest the object (called the objective) is magnified by another lens called the ocular or eyepiece. -- Oxyhydrogen microscope, and Solar microscope. See under Oxyhydrogen, and Solar. -- Simp…

hip. Midship beam (Naut.), the beam or timber upon which the broadest part of a vessel is formed. -- Midship bend, the broadest frame in a vessel. Weale.

Performed or made by soldiers; as, a military election; a military expedition. Bacon. Military law. See Martial law, under Martial. -- Military order. (a) A command proceeding from a military superior. (b) An association of military persons under a bond of certain peculiar rules; especially, such an association of kni…

Consisting of, or formed by, imitation; imitated; as, mimic gestures. "Mimic hootings." Wordsworth.