Sewing by machine, as distinct from sewing by hand.
A large box camera that which allowed a series of prints to made on plates or film without reloading
A remedy (drug or therapy or preventive) that cures or prevents a disease or number of diseases.
Box-like device containing illuminating lamp with condensing mirror or lens and other lens to project lantern slides on a screen or wall. Used for public recreation or private entertainment.
A magnetic levitational transit system.
A navigational instrument for determining direction relative to the earth's magnetic poles. It consists of a magnetized pointer free to align itself with Earth's magnetic field. Directions are indicated by either a fixed or rotating scale, usually marked both in degress and the cardinal points (North-South-East-West)
Instruments for measuring the magnitude and sometimes the direction of a magnetic field, especially that of the earth.
The process of enlarging something in appearance, not in physical size.
Hand-held, simple or compound magnifying lens with low powers (x3-20) used to closely examine small objects
A vehicle designed specifically for the collection, sorting, conveyance and discharge of mail
Parasitic disease transmitted by certain kinds of mosquito. Malaria is characterized by fever and enlargement of the spleen. Each year, there are approximately 515 million cases of malaria, killing between one and three million people.
mallet - tool
Hammering tool with a head and handle, usually of wood but sometimes of other materials, smaller than a maul or beetle and usually with a relatively large head, often used to drive another tool, such as a chisel or a gouge.
The root of any plant in the Mandragora family. The resemblance of the root to a human led to a superstition that when pulled from the ground, the root would produce a shriek that would kill anyone who heard it.
A category of mental illness from the Middle Ages to the 1800s. Those with mania experienced uncontrollability, euphoric highs and bouts of excessive energy.
Models of the human body used for teaching anatomy or demonstrating surgical operations.
manual - instructional material
Portable books, treatises, or compendiums, covering one or more subjects, arranged for quick location of information and of a size such as may conveniently be held in the hand. Examples are instructional manuals and guides to museums' collections.
manuscript - document genre
Handwritten documents, particularly books and other documents created before the invention of the printing press. May also be used to distinguish certain documents from published or otherwise printed documents, as in the cases of typed personal letters or a typescript from which printed versions are made.
A document, poster or sign showing stations, routes and locations served in cartographic form.
Mariner's astrolabe, also called sea astrolabe, is not an astrolabe proper, but rather a graduated circle with an alidade used to measure vertical angles. Used to measure the altitude of the pole star or that of the sun at noon to determine latitude at sea.
Navigational magnetic compass usually consisting of a pivoted compass card & magnet needle and with 8, 16, or 32 equal divisions, set in a gimbal-mounted nonferrous metal bowl.