NH3 definition

NH3





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2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Type \Type\ (t[imac]p), n. [F. type; cf. It. tipo, from L. typus
     a figure, image, a form, type, character, Gr. ty`pos the mark
     of a blow, impression, form of character, model, from the
     root of ty`ptein to beat, strike; cf. Skr. tup to hurt.]
     1. The mark or impression of something; stamp; impressed
        sign; emblem.


        [1913 Webster]
  
              The faith they have in tennis, and tall stockings,
              Short blistered breeches, and those types of travel.
                                                    --Shak.
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     2. Form or character impressed; style; semblance.
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              Thy father bears the type of king of Naples. --Shak.
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     3. A figure or representation of something to come; a token;
        a sign; a symbol; -- correlative to antitype.
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              A type is no longer a type when the thing typified
              comes to be actually exhibited.       --South.
        [1913 Webster]
  
     4. That which possesses or exemplifies characteristic
        qualities; the representative. Specifically:
        (a) (Biol.) A general form or structure common to a number
            of individuals; hence, the ideal representation of a
            species, genus, or other group, combining the
            essential characteristics; an animal or plant
            possessing or exemplifying the essential
            characteristics of a species, genus, or other group.
            Also, a group or division of animals having a certain
            typical or characteristic structure of body maintained
            within the group.
            [1913 Webster]
  
                  Since the time of Cuvier and Baer . . . the
                  whole animal kingdom has been universally held
                  to be divisible into a small number of main
                  divisions or types.               --Haeckel.
            [1913 Webster]
        (b) (Fine Arts) The original object, or class of objects,
            scene, face, or conception, which becomes the subject
            of a copy; esp., the design on the face of a medal or
            a coin.
            [1913 Webster]
        (c) (Chem.) A simple compound, used as a model or pattern
            to which other compounds are conveniently regarded as
            being related, and from which they may be actually or
            theoretically derived.
            [1913 Webster]
  
     Note: The fundamental types used to express the simplest and
           most essential chemical relations are hydrochloric
           acid, {HCl}; water, {H2O}; ammonia, {NH3}; and methane,
           {CH4}.
           [1913 Webster]
  
     5. (Typog.)
        (a) A raised letter, figure, accent, or other character,
            cast in metal or cut in wood, used in printing.
        (b) Such letters or characters, in general, or the whole
            quantity of them used in printing, spoken of
            collectively; any number or mass of such letters or
            characters, however disposed.
            [1913 Webster]
  
     Note: Type are mostly made by casting type metal in a mold,
           though some of the larger sizes are made from maple,
           mahogany, or boxwood. In the cut, a is the body; b, the
           face, or part from which the impression is taken; c,
           the shoulder, or top of the body; d, the nick
           (sometimes two or more are made), designed to assist
           the compositor in distinguishing the bottom of the face
           from t`e top; e, the groove made in the process of
           finishing, -- each type as cast having attached to the
           bottom of the body a jet, or small piece of metal
           (formed by the surplus metal poured into the mold),
           which, when broken off, leaves a roughness that
           requires to be removed. The fine lines at the top and
           bottom of a letter are technically called ceriphs, and
           when part of the face projects over the body, as in the
           letter f, the projection is called a kern.
           [1913 Webster] The type which compose an ordinary book
           font consist of Roman CAPITALS, small capitals, and
           lower-case letters, and Italic CAPITALS and lower-case
           letters, with accompanying figures, points, and
           reference marks, -- in all about two hundred
           characters. Including the various modern styles of
           fancy type, some three or four hundred varieties of
           face are made. Besides the ordinary Roman and Italic,
           some of the most important of the varieties are 
           [1913 Webster] Old English. Black Letter. Old Style.
           French Elzevir. Boldface. Antique. Clarendon. Gothic.
           Typewriter. Script.
           [1913 Webster] The smallest body in common use is
           diamond; then follow in order of size, pearl, agate,
           nonpareil, minion, brevier, bourgeois (or two-line
           diamond), long primer (or two-line pearl), small pica
           (or two-line agate), pica (or two-line nonpareil),
           English (or two-line minion), Columbian (or two-line
           brevier), great primer (or two-line bourgeois), paragon
           (or two-line long primer), double small pica (or
           two-line small pica), double pica (or two-line pica),
           double English (or two-line English), double great
           primer (or two-line great primer), double paragon (or
           two-line paragon), canon (or two-line double pica).
           Above this, the sizes are called five-line pica,
           six-line pica, seven-line pica, and so on, being made
           mostly of wood. The following alphabets show the
           different sizes up to great primer.
           [1913 Webster] Brilliant . . abcdefghijklmnopqrstuvwxyz
           Diamond . . abcdefghijklmnopqrstuvwxyz Pearl . . .
           abcdefghijklmnopqrstuvwxyz Agate . . .
           abcdefghijklmnopqrstuvwxyz Nonpareil . . .
           abcdefghijklmnopqrstuvwxyz Minion . . .
           abcdefghijklmnopqrstuvwxyz Brevier . . .
           abcdefghijklmnopqrstuvwxyz Bourgeois . .
           abcdefghijklmnopqrstuvwxyz Long primer . . .
           abcdefghijklmnopqrstuvwxyz Small pica . .
           abcdefghijklmnopqrstuvwxyz Pica . . . . .
           abcdefghijklmnopqrstuvwxyz English . . .
           abcdefghijklmnopqrstuvwxyz Columbian . . .
           abcdefghijklmnopqrstuvwxyz Great primer . . .
           abcdefghijklmnopqrstuvwxyz
           [1913 Webster] The foregoing account is conformed to
           the designations made use of by American type founders,
           but is substantially correct for England. Agate,
           however, is called ruby, in England, where, also, a
           size intermediate between nonpareil and minion is
           employed, called emerald.
           [1913 Webster]
  
     {Point system of type bodies} (Type Founding), a system
        adopted by the type founders of the United States by which
        the various sizes of type have been so modified and
        changed that each size bears an exact proportional
        relation to every other size. The system is a modification
        of a French system, and is based on the pica body. This
        pica body is divided into twelfths, which are termed
        "points," and every type body consist of a given number of
        these points. Many of the type founders indicate the new
        sizes of type by the number of points, and the old names
        are gradually being done away with. By the point system
        type founders cast type of a uniform size and height,
        whereas formerly fonts of pica or other type made by
        different founders would often vary slightly so that they
        could not be used together. There are no type in actual
        use corresponding to the smaller theoretical sizes of the
        point system. In some cases, as in that of ruby, the term
        used designates a different size from that heretofore so
        called.
        [1913 Webster] 1 American 9 Bourgeois [bar] [bar] 11/2
        German [bar] 2 Saxon 10 Long Primer [bar] [bar] 21/2 Norse
        [bar] 3 Brilliant 11 Small Pica [bar] [bar] 31/2 Ruby 12
        Pica [bar] [bar] 4 Excelsior [bar] 41/2 Diamond 14 English
        [bar] [bar] 5 Pearl 16 Columbian [bar] [bar] 51/2 Agate
        [bar] 6 Nonpareil 18 Great Primer [bar] [bar] 7 Minion
        [bar] 8 Brevier 20 Paragon [bar] [bar] Diagram of the
        "points" by which sizes of Type are graduated in the
        "Point System".
        [1913 Webster]
  
     {Type founder}, one who casts or manufacture type.
  
     {Type foundry}, {Type foundery}, a place for the manufacture
        of type.
  
     {Type metal}, an alloy used in making type, stereotype
        plates, etc., and in backing up electrotype plates. It
        consists essentially of lead and antimony, often with a
        little tin, nickel, or copper.
  
     {Type wheel}, a wheel having raised letters or characters on
        its periphery, and used in typewriters, printing
        telegraphs, etc.
  
     {Unity of type} (Biol.), that fundamental agreement in
        structure which is seen in organic beings of the same
        class, and is quite independent of their habits of life.
        --Darwin.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  ammonia \am*mo"ni*a\ ([a^]m*m[=o]"n[i^]*[.a]), n. [From sal
     ammoniac, which was first obtaining near the temple of
     Jupiter Ammon, by burning camel's dung. See {Ammoniac}.]
     (Chem.)
     A gaseous compound of hydrogen and nitrogen, {NH3}, with a
     pungent smell and taste: -- often called {volatile alkali},
     and {spirits of hartshorn}. It is very soluble in water,
     forming a moderately alkaline solution, and is used in
     aqueous solution as a household cleaning agent, such as for
     cleaning grease from glass.
     [1913 Webster + PJC] Ammoniac

















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