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Macavahu

A small Brazilian monkey (Callithrix torquatus), -- called also collared teetee.

Macaw

Any parrot of the genus Ara, Sittace, or Macrocercus. About eighteen species are known, all of them found in Central and South America. They are large and have a very long tail, a strong hooked bill, and a naked space around the eyes. The voice is harsh, and the colors are brilliant and strongly contrasted; they are among the largest and showiest of parrots. Different species names have been given to the same macaw, as for example the Hyacinthine macaw, which has been variously classified as Anodorhyncus hyacynthinus, Anodorhyncus maximiliani, and Macrocercus hyacynthinus.

Maccabean

Of or pertaining to Judas Maccabeus or to the Maccabees; as, the Maccabean princes; Maccabean times.

Maccabees

The name given in later times to the Asmonaeans, a family of Jewish patriots, who headed a religious revolt in the reign of Antiochus IV., 168-161 b. c., which led to a period of freedom for Israel.

maccaroni wheat

A type of wheat (Triticum durum) with hard dark-colored kernels high in gluten and used for bread and pasta; grown especially in South Russia, North Africa, and North central North America.

Macco

A gambling game in vogue in the eighteenth century.

Mace

A chemical preparation containing tear gas in a solvent, packaged in the form of a spray, and used to temporarily incapacitate people, such as rioters or criminals, by causing intense eye and skin irritation; also called chemical mace. It is designed to be a non-lethal weapon for defending against violent people.

Macedoine

A kind of mixed dish, as of cooked vegetables with white sauce, sweet jelly with whole fruit, mixed diced fruits or vegetables etc.; served hot or cold; a medley.

Macedonia Macedon

The ancient kingdom of Phillip II and Alexander the Great in the Southeastern Balkans that is now part of Greece, Bulgaria and the independent republic of Macedonia that was part of the former Yugoslavia.

Macedonian

One of a certain religious sect, followers of Macedonius, Bishop of Constantinople, in the fourth century, who held that the Holy Ghost was a creature, like the angels, and a servant of the Father and the Son.

Macer

A mace bearer; an officer of a court.

Macerate

To make lean; to cause to waste away.

Macerater

One who, or that which, macerates; an apparatus for converting paper or fibrous matter into pulp.

macerative

Accompanied by or characterized by maceration.

mach number

The ratio of the speed of a moving body to the speed of sound.

Machairodus Machaerodus

A genus of extinct mammals allied to the cats, and having in the upper jaw canine teeth of remarkable size and strength; -- hence called saber-toothed tigers.

Machete

A large heavy knife resembling a broadsword, often two or three feet in length, -- used by the inhabitants of Spanish America as a hatchet to cut their way through thickets, and for various other purposes.

Machiavellianism Machiavelism

The supposed principles of Machiavelli, or practice in conformity to them; political artifice, intended to favor arbitrary power.

machilid

A wingless insect living in dark moist places, as under tree trunks; they make erratic leaps when disturbed; called also jumping bristletail.

Machilidae

A natural family of insects including the jumping bristletails.

Machinate

To contrive, as a plot; to plot; as, to machinate evil.

Machinator

One who machinates, or forms a scheme with evil designs; a plotter or artful schemer.

Machine

To subject to the action of machinery; to make, cut, shape, or modify with a machine; to effect by aid of machinery; to print with a printing machine.

machine bolt

A threaded hexagonal or square-headed bolt with a nut; it is tightened with a wrench and used to connect metal parts.

machine gun

A fully automatic rapid-firing rifle, which continues to fire bullets repeatedly as long as the trigger is depressed; lighter versions may be carried in the hands, and heavier versions may be mounted on a tripod, vehicle, or other mount. The lighweight versions are sometimes called a submachine gun.

machine gun machine-gun

Occurring in rapid succession, like the firing of a machine gun; as, Tom was a persuasive speaker, with a smooth deep voice, polysyllabic vocabulary, and a machine-gun articulation that overwhelmed listeners.

machine language

a set of instructions{3} in a binary form that can be executed directly by the CPU of a computer without translation by a computer program.

machine screw

A type of screw used either with a nut or with a tapped hole; it has a slotted head which can be driven by a screwdriver.

machine shop

A small business or a room within a business establishment where metal is cut and shaped etc., by machine tools.

machine tool

A power-driven machine for cutting or shaping or finishing metals or other materials.

machine translation

The translation of human language from one language to another by a computer; -- a branch of artificial intelligence.

machine-readable

Readable by a machine; available on a data-storage medium in a binary format that can be rapidly converted by standard input devices into data in a computer memory; as, the CIDE dictionary is a machine-readable dictionary.

Machiner

One who or operates a machine; a machinist{2}.

Machinery

Machines, in general, or collectively.

Machining

Of or pertaining to the machinery of a poem; acting or used as a machine.

Machinist

A constructor of machines and engines; one versed in the principles of machines.

machismo

A strong, and by some considered exaggerated, sense of manly pride, associated with an attitude that the proper expression of masculinity includes virility, courage, and an entitlement to dominate, especially over women.

machmeter

an instrument for measuring the speed of an aircraft relative to the speed of sound.

Macho

The striped mullet of California (Mugil cephalus, syn. Mugil Mexicanus).

macho

Manly, especially with an assertive and domineering manner toward women.

MACHO

A form of dark matter in distant outer space unobservable except by its gravitational effect, and believed to be at least part of the /missing matter/ which is unobservable as ordinary stars, but helps keep galaxies from flying apart; MACHOS are massive but compact objects such as neutron stars or brown dwarfs, which can be detected (with difficulty) by their effect in bending light from distant light sources, such as other galaxies. This can occur if by rare chance a MACHO passes in front of a more distant visible object, and the light from that object becomes temporarily amplified by the MACHO acting as a gravitational lens. Some MACHOs have been discovered in the halo of dark matter that surrounds our milky way. It is, however, questionable whether the amount of such matter is sufficient to explain the ability of galaxies to stay together in spite of rotation rates that would cause them to fly apart if the only matter present was that observable as visible stars.

mack

A mackintosh; -- a shortened form.

Mackenzie

a Canadian river; flows into the Beaufort Sea.

Mackerel

Any species of the genus Scomber of the family Scombridae, and of several related genera. They are finely formed and very active oceanic fishes. Most of them are highly prized for food.

mackerel sky

A sky filled with rows of cirrocumulus or small altocumulus clouds.

Mackintosh

A waterproof outer garment; -- so called from the name of the inventor.

Mackle

To blur, or be blurred, in printing, as if there were a double impression.

Macle

Chiastolite; -- so called from the tessellated appearance of a cross section. See Chiastolite. A crystal having a similar tessellated appearance. A twin crystal.

Macleaya

A genus of East Asian perennial herbs including the plume poppy.

Macled

Marked like macle (chiastolite). Having a twin structure. See Twin, a.

Maclura

A genus of plants including the yellowwood trees and shrubs.

Maclurea

A genus of spiral gastropod shells, often of large size, characteristic of the lower Silurian rocks.

maconnais macon

A fine Burgundy wine usually white and dry, produced in the area around Macon, a city in France.

Macoun

A juicy, late-ripening apple similar to a McIntosh.

Macowanites

A stout-stemmed genus of fungi belonging to the family Secotiaceae having fruiting bodies that never expand completely.

Macowanites americanus

A small fungus with a fragile cap that cracks to expose the white context and a white stalk that is practically enclosed by the cap.

Macrame

the art of tying knots in patterns.

macrencephaly

The condition of having an abnormally large braincase.

macro

very large in scale or scope or capability; as, macroeconomics.

macro lens

a camera lens designed to focus at short distances so as to achieve photographic magnifications of objects larger than with standard lenses.

Macro-

A combining form signifying long, large, great; as macrodiagonal, macrospore, macromolecule, macrocosm.

Macro-chemistry

The science which treats of the chemical properties, actions or relations of substances in quantity; -- distinguished from micro-chemistry.

macrocephaly

THe condition of having an unusually large head; it differs from hydrocephalus because there is no increase intracranial pressure and the overgrowth is symmetrical.

Macrochires

A division of birds including the swifts and humming birds. So called from the length of the distal part of the wing.

Macrocosm

The great world; that part of the universe which is exterior to man; -- contrasted with microcosm, or man. See Microcosm.

Macrocystis

An immensely long blackish seaweed of the Pacific (Macrocystis pyrifera), having numerous almond-shaped air vessels.

macrocyte

An abnormally large red blood cell, associated with pernicious anemia.

macrocytosis

An abnormal physiological condition characterized by the presence of macrocytes in the blood.

Macrodactyl

One of a group of wading birds (Macrodactyli) having very long toes.

Macrodiagonal

The longer of two diagonals, as of a rhombic prism. See Crystallization.

Macrodome

A dome parallel to the longer lateral axis of an orthorhombic crystal. See Dome, n., 4.

Macrodont

Having large teeth. A macrodont animal.

macroglia

Tissue consisting of large stellate neuroglial cells.

Macrograph

A picture of an object as seen by the naked eye (that is, unmagnified); as, a macrograph of a metallic fracture.

Macrography

Examination or study with the naked eye, as distinguished from micrography.

Macrology

Long and tedious talk without much substance; superfluity of words.

Macrometer

An instrument for determining the size or distance of inaccessible objects by means of two reflectors on a common sextant.

macromolecule

A very large molecule, especially a polymer having from hundreds to many thousands of atoms, such as DNA, RNA, protein, polysaccharide, polyethylene, polycarbonate, etc.

Macron

A short, straight, horizontal mark [-], placed over vowels to denote that they are to be pronounced with a long sound; as, /, in d/me; /, in s/am, etc.

Macropinacoid

One of the two planes of an orthorhombic crystal which are parallel to the vertical and longer lateral (macrodiagonal) axes.

Macropod

Any one of a group of maioid crabs remarkable for the length of their legs; -- called also spider crab.

Macropodal

Having long or large feet, or a long stem.

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