MINERAL a. 5 definitions
acids, etc., as distinguished from the organic acids. -- Mineral blue, the name usually given to azurite, when reduced to an impalpable powder for coloring purposes. -- Mineral candle, a candle made of paraffine. -- Mineral caoutchouc, an elastic mineral pitch, a variety of bitumen, resembling caoutchouc in elastic…
MODULUS n.
fficiency, etc.; a parameter. Modulus of a machine, a formula expressing the work which a given machine can perform under the conditions involved in its construction; the relation between the work done upon a machine by the moving power, and that yielded at the working points, either constantly, if its motion be unifor…
MORSE CODE n.
ces, invented by Samuel B. Morse. The Alphabetic code which is in use in North America is given below. In length, or duration, one dash is theoretically equal to three dots; the space between the elements of a letter is equal to one dot; the interval in spaced letters, as O . ., is equal to three dots. There are no spa…
MORTALITY n. 5 definitions
The whole sum or number of deaths in a given time or a given community; also, the proportion of deaths to population, or to a specific number of the population; death rate; as, a time of great, or low, mortality; the mortality among the settlers was alarming. Bill of mortality. See under Bill. -- Law of mortality, a m…
MOUTH n. 20 definitions
-- Mouth glass, a small mirror for inspecting the mouth or teeth. -- Mouth honor, honor given in words, but not felt. Shak. -- Mouth organ. (Mus.) (a) Pan's pipes. See Pandean. (b) An harmonicon. -- Mouth pipe, an organ pipe with a lip or plate to cut the escaping air and make a sound. -- To stop the mouth, to sil…
MULTIPLICATION n. 4 definitions
The process of repeating, or adding to itself, any given number or quantity a certain number of times; commonly, the process of ascertaining by a briefer computation the result of such repeated additions; also, the rule by which the operation is performed; -- the reverse of division.