| machine shop |
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noun
- A facility that has machine tool, machine tools for working with metal, metals or other relatively hard materials, such as some polymers. Various kinds of machine shops make and repair all types of metal objects, from machine tools, dies, and molds to mass-produced parts such as screws, pistons, or gears.
| | | Mallet |
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noun
- A type of articulated locomotive, in which there are two powered trucks, with the rear truck being rigidly attached to the main body and boiler of the locomotive, while the front powered truck is attached to the rear by a hinge, so that it may swing from side to side, and with the front end of the boiler resting upon a sliding bearing on the swinging front truck.
| | Mason |
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noun
- an English and Scottish occupational surname for a stonemason
- a Freemason
- (given name, male) derived from the surname.
| | masonry |
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noun - The art or occupation of a mason.
- The work or performance of a mason; as, good or bad masonry; skillful masonry.
- That which is built by a mason; anything constructed of the materials used by masons, such as stone, brick, tiles, or the like. Dry masonry is applied to structures made without mortar.
- The craft, institution, or mysteries of Freemasons; freemasonry.
| | master key |
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noun
- A key designed to open a set of several locks; a passkey
| | mat |
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noun
- A flat piece of coarse material used for wipe, wiping one"s feet, or as a decorative or protective floor covering
- A small flat piece of material used to protect a surface from anything hot or rough; a coaster
- (athletics) A floor pad to protect athletes
- A thickly tangled mess, of hair etc
- a thick paper or paperboard border used to inset and center the contents of a frame
verb to mat
- to cover, protect or decorate (something) with mats
- to form a thick, tangled mess
| | matrix |
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noun (matrices)
- (obsolete) The womb. The concept of an enclosure is common to many of the other uses of .
- (biology) The material or tissue in which more specialized structures are embedded.
- (biology) An extracellular matrix, the material or tissue between the cells of animals or plants.
- (biology) Part of the mitochondrion.
- (biology) The medium in which bacterium, bacteria are cultured.
- (mathematics) A rectangular arrangement of numbers or terms having various uses such as transforming coordinates in geometry, solving system of linear equations, systems of linear equations in linear algebra and representing graphs in graph theory.
- (computing) A two-dimensional array.
- A table of data.
- (geology) A geological matrix, the outer material of a rock consisting of larger grains embedded in a material consisting of smaller ones.
- (archaeology) The sediment surrounding and including the artifacts, features, and other materials at a site.
- (analytical chemistry) The environment from which a given sample is taken.
| | mattock |
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noun (mattocks)
- an agricultural tool whose blades are at right angles to the body; similar in appearance to a pickax
| | mattress |
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noun
- A pad often of soft cushiony material for sleeping on. Usually a mattress has an inner section of coiled springs for support surrounded with a foam pad or another pad made of cushioning material then topped with a cloth outer cover.
| | maul |
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noun
- A heavy long-handled hammer, used for splitting logs by driving a wedge into it, or in combat.
- (rugby) A situation where the player carrying the ball, who must be on his feet, is held by one or more opponents, and one or more of the ball carrier's team mates bind onto the ball carrier.
verb
- To handle someone or something in a rough way.
- To savage.
- The bear mauled him in a terrible way.
- To criticise rudely.
| | millwork |
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noun
- any wooden object manufactured at a lumber mill
- Most especially, doors, windows, and wood trim with decorative cross-section involving curves, beads, grooves, etc.
| | miter |
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verb
- To finish a material at an angle, frequently 45 degrees, such that it will fit up tightly against another piece of material, as with a picture frame.
| | monkey wrench |
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noun
- A wrench with a smooth adjustable jaw to grip different sizes of nuts.
- (idiom) A problem, obstacle or dilemma; something unexpected or troublesome.
- Having a baby will add a to her routines.
| | mortar |
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noun
- (uncountable) A mixture of lime or cement, sand and water used for bonding bricks and stones.
- (countable) Military A muzzle-loading, indirect fire weapon with either a rifled or smooth bore. It usually has a shorter range than a howitzer, employs a higher angle of fire, and has a tube with a length of 10 to 20 calibers. See also gun; howitzer. JP-1-02.
- (countable) A hollow vessel used to pound, crush, rub, grind or mix ingredients with a pestle.
verb
- To use mortar or plaster to join two things together.
- To fire a mortar (weapon)
| | mortise |
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noun (also: mortice)
- A hole that is made to receive a tenon so as to form a joint
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