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Messidor

The tenth month of the French republican calendar dating from September 22, 1792. It began June 19, and ended July 18. See Vend/miaire.

Messieurs

Sirs; gentlemen; -- abbreviated to Messrs., which is used as the plural of Mr.

Messinese

Of or pertaining to Messina, or its inhabitans.

Messuage

A dwelling house, with the adjacent buildings and curtilage, and the adjoining lands appropriated to the use of the household.

Mestee

The offspring of a white person and a quadroon; -- so called in the West Indies.

Mestizo

The offspring of an Indian or a negro and a European or person of European stock.

Met

p. p. of Mete, to dream.

Metabasis

A transition from one subject to another.

Metabolia Metabola

A comprehensive group of insects, including those that undegro a metamorphosis.

Metabolian

An insect which undergoes a metamorphosis.

Metabolic

Of or pertaining to metamorphosis; pertaining to, or involving, change.

Metabolism

The act or process, by which living tissues or cells take up and convert into their own proper substance the nutritive material brought to them by the blood, or by which they transform their cell protoplasm into simpler substances, which are fitted either for excretion or for some special purpose, as in the manufacture of the digestive enzymes. Hence, metabolism may be either constructive (anabolism), or destructive (catabolism).

Metabolite

A product of metabolism; a substance produced by metabolic action, as urea.

Metabolize

To change by a metabolic process. See Metabolism.

Metabranchial

Of or pertaining to the lobe of the carapace of crabs covering the posterior branchiae.

Metacarpal

Of or pertaining to the metacarpus. A metacarpal bone.

Metacarpus

That part of the skeleton of the hand or forefoot between the carpus and phalanges. In man it consists of five bones. See Illust. of Artiodactyla.

Metacentre Metacenter

The point of intersection of a vertical line through the center of gravity of the fluid displaced by a floating body which is tipped through a small angle from its position of equilibrium, and the inclined line which was vertical through the center of gravity of the body when in equilibrium.

Metacetone

A colorless liquid of an agreeable odor, C6H10O, obtained by distilling a mixture of sugar and lime; -- so called because formerly regarded as a polymeric modification of acetone.

Metachloral

A white, amorphous, insoluble substance regarded as a polymeric variety of chloral.

Metachronism

An error committed in chronology by placing an event after its real time.

Metachrosis

The power of changing color at will by the expansion of special pigment cells, under nerve influence, as seen in many reptiles, fishes, etc.

Metacism

A defect in pronouncing the letter m, or a too frequent use of it.

Metacrolein

A polymeric modification of acrolein obtained by heating it with caustic potash. It is a crystalline substance having an aromatic odor.

Metacromion

A process projecting backward and downward from the acromion of the scapula of some mammals.

Metadiscoidal

Discoidal by derivation; -- applied especially to the placenta of man and apes, because it is supposed to have been derived from a diffused placenta.

Metagastric

Of or pertaining to the two posterior gastric lobes of the carapace of crabs.

Metage

Measurement, especially of coal.

Metagenesis

The change of form which one animal species undergoes in a series of successively produced individuals, extending from the one developed from the ovum to the final perfected individual. Hence, metagenesis involves the production of sexual individuals by nonsexual means, either directly or through intervening sexless generations. Opposed to monogenesis. See Alternate generation, under Generation.

Metagnathous

Cross-billed; -- said of certain birds, as the crossbill.

Metagraphy

The art or act of rendering the letters of the alphabet of one language into the possible equivalents of another; transliteration.

Metal

To cover with metal; as, to metal a ship's bottom; to metal a road.

Metalammonium

A hypothetical radical derived from ammonium by the substitution of metallic atoms in place of hydrogen.

metalanguage

Any language that can be used to describe another language or system of symbols.

Metalbumin

A form of albumin found in ascitic and certain serous fluids. It is sometimes regarded as a mixture of albumin and mucin.

Metaldehyde

A white crystalline substance isomeric with, and obtained from, acetic aldehyde by polymerization, and reconvertible into the same.

Metalepsis

The continuation of a trope in one word through a succession of significations, or the union of two or more tropes of a different kind in one word.

Metalepsy

Exchange; replacement; substitution; metathesis.

Metallic

Of or pertaining to a metal; of the nature of metal; resembling metal; as, a metallic appearance; a metallic alloy.

Metallicly

In a metallic manner; by metallic means.

Metalline

A substance of variable composition, but resembling a soft, dark-colored metal, used in the bearings of machines for obviating friction, and as a substitute for lubricants.

Metallist

A worker in metals, or one skilled in metals.

Metallize

To impart metallic properties to; to impregnate with a metal.

Metallochrome

A coloring produced by the deposition of some metallic compound; specifically, the prismatic tints produced by depositing a film of peroxide of lead on polished steel by electricity.

Metallography

The science or art of metals and metal working; also, a treatise on metals.

Metallophone

An instrument like a pianoforte, but having metal bars instead of strings. An instrument like the xylophone, but having metallic instead of wooden bars.

Metallotherapy

Treatment of disease by applying metallic plates to the surface of the body.

Metallurgist

One who works in metals, or prepares them for use; one who is skilled in metallurgy.

Metallurgy

The art of working metals, comprehending the whole process of separating them from other matters in the ore, smelting, refining, and parting them; sometimes, in a narrower sense, only the process of extracting metals from their ores.

metalorganic

Pertaining to, or denoting, any one of a series of compounds of certain metallic elements with organic radicals; as, zinc methyl, sodium ethyl, etc.; now usually organometallic.

Metamer

Any one of several metameric forms of the same substance, or of different substances having the same composition; as, xylene has three metamers, viz., orthoxylene, metaxylene, and paraxylene; an isomer.

Metamere

One of successive or homodynamous parts in animals and plants; one of a series of similar parts that follow one another in a vertebrate or articulate animal, as in an earthworm; a segment; a somite. See Illust. of Loeven's larva.

Metameric

Having the same molecular formula, but possessing a different bonding structure and different properties; as, methyl ether and ethyl alcohol are metameric compounds. See Isomeric.

Metamerism

The symmetry of a metameric structure; serial symmetry; the state of being made up of metameres.

Metamorphism

The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, pressure, etc., as in the change of sedimentary limestone to marble.

Metamorphist

One who believes that the body of Christ was merged into the Deity when he ascended.

Metanauplius

A larval crustacean in a stage following the nauplius, and having about seven pairs of appendages.

Metanephros

The most posterior of the three pairs of embryonic renal organs developed in many vertebrates.

Metanotum

The dorsal portion of the metaphorax of insects.

Metantimonic

Pertaining to, or designating, an acid (formerly called antimonic acid) analogous to metaphosphoric acid, and obtained as a white amorphous insoluble substance, (HSbO3). Formerly, designating an acid, which is now properly called pyroantimonic acid, and analogous to pyrophosphoric acid.

Metapectic

Pertaining to, or designating, a supposed acid obtained from pectin.

Metapectin

A substance obtained from, and resembling, pectin, and occurring in overripe fruits.

Metapeptone

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

metaphor

The transference of the relation between one set of objects to another set for the purpose of brief explanation; a compressed simile; e. g., the ship plows the sea.

Metaphorical Metaphoric

Of or pertaining to metaphor; comprising a metaphor; not literal; figurative; tropical; as, a metaphorical expression; a metaphorical sense.

metaphosphoric

Pertaining to, or designating, a monobasic acid, HPO3, analogous to nitric acid, and, by heating phosphoric acid, obtained as a crystalline substance, commonly called glacial phosphoric acid. Compare the tribasic orthophosphoric acid.

Metaphrase

A verbal translation; a version or translation from one language into another, word for word; a literal translation; -- opposed to paraphrase.

Metaphysically

In the manner of metaphysical science, or of a metaphysician.

Metaphysics

The science of real as distinguished from phenomenal being; ontology; also, the science of being, with reference to its abstract and universal conditions, as distinguished from the science of determined or concrete being; the science of the conceptions and relations which are necessarily implied as true of every kind of being; philosophy in general; first principles, or the science of first principles.

Metaplasm

A change in the letters or syllables of a word.

Metaplast

A word having more than one form of the root.

Metapode

The posterior division of the foot in the Gastropoda and Pteropoda.

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