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2 definitions found
 for Siemens-Martin process
From The Collaborative International Dictionary of English v.0.48 :

  Siemens-Martin process \Sie"mens-Mar`tin proc"ess\
     See Open-hearth process, etc., under Open.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Open \O"pen\, a. [AS. open; akin to D. open, OS. opan, G. offan,
     Icel. opinn, Sw. ["o]ppen, Dan. aaben, and perh. to E. up.
     Cf. Up, and Ope.]
     1. Free of access; not shut up; not closed; affording
        unobstructed ingress or egress; not impeding or preventing
        passage; not locked up or covered over; -- applied to
        passageways; as, an open door, window, road, etc.; also,
        to inclosed structures or objects; as, open houses, boxes,
        baskets, bottles, etc.; also, to means of communication or
        approach by water or land; as, an open harbor or
        [1913 Webster]
              Through the gate,
              Wide open and unguarded, Satan passed. --Milton
        [1913 Webster]
     Note: Also, figuratively, used of the ways of communication
           of the mind, as by the senses; ready to hear, see,
           etc.; as, to keep one's eyes and ears open.
           [1913 Webster]
                 His ears are open unto their cry.  --Ps. xxxiv.
           [1913 Webster]
     2. Free to be used, enjoyed, visited, or the like; not
        private; public; unrestricted in use; as, an open library,
        museum, court, or other assembly; liable to the approach,
        trespass, or attack of any one; unprotected; exposed.
        [1913 Webster]
              If Demetrius . . . have a matter against any man,
              the law is open and there are deputies. --Acts xix.
        [1913 Webster]
              The service that I truly did his life,
              Hath left me open to all injuries.    --Shak.
        [1913 Webster]
     3. Free or cleared of obstruction to progress or to view;
        accessible; as, an open tract; the open sea.
        [1913 Webster]
     4. Not drawn together, closed, or contracted; extended;
        expanded; as, an open hand; open arms; an open flower; an
        open prospect.
        [1913 Webster]
              Each, with open arms, embraced her chosen knight.
        [1913 Webster]
     5. Hence:
        (a) Without reserve or false pretense; sincere;
            characterized by sincerity; unfeigned; frank; also,
            generous; liberal; bounteous; -- applied to personal
            appearance, or character, and to the expression of
            thought and feeling, etc.
            [1913 Webster]
                  With aspect open, shall erect his head. --Pope.
            [1913 Webster]
                  The Moor is of a free and open nature. --Shak.
            [1913 Webster]
                  The French are always open, familiar, and
                  talkative.                        --Addison.
            [1913 Webster]
        (b) Not concealed or secret; not hidden or disguised;
            exposed to view or to knowledge; revealed; apparent;
            as, open schemes or plans; open shame or guilt; open
            source code.
            [1913 Webster +PJC]
                  His thefts are too open.          --Shak.
            [1913 Webster]
                  That I may find him, and with secret gaze
                  Or open admiration him behold.    --Milton.
            [1913 Webster]
     6. Not of a quality to prevent communication, as by closing
        water ways, blocking roads, etc.; hence, not frosty or
        inclement; mild; -- used of the weather or the climate;
        as, an open season; an open winter. --Bacon.
        [1913 Webster]
     7. Not settled or adjusted; not decided or determined; not
        closed or withdrawn from consideration; as, an open
        account; an open question; to keep an offer or opportunity
        [1913 Webster]
     8. Free; disengaged; unappropriated; as, to keep a day open
        for any purpose; to be open for an engagement.
        [1913 Webster]
     9. (Phon.)
        (a) Uttered with a relatively wide opening of the
            articulating organs; -- said of vowels; as, the [aum]n
            f[aum]r is open as compared with the [=a] in s[=a]y.
        (b) Uttered, as a consonant, with the oral passage simply
            narrowed without closure, as in uttering s.
            [1913 Webster]
     10. (Mus.)
         (a) Not closed or stopped with the finger; -- said of the
             string of an instrument, as of a violin, when it is
             allowed to vibrate throughout its whole length.
         (b) Produced by an open string; as, an open tone.
             [1913 Webster]
     The open air, the air out of doors.
     Open chain. (Chem.) See Closed chain, under Chain.
     Open circuit (Elec.), a conducting circuit which is
        incomplete, or interrupted at some point; -- opposed to an
        uninterrupted, or closed circuit.
     Open communion, communion in the Lord's supper not
        restricted to persons who have been baptized by immersion.
        Cf. Close communion, under Close, a.
     Open diapason (Mus.), a certain stop in an organ, in which
        the pipes or tubes are formed like the mouthpiece of a
        flageolet at the end where the wind enters, and are open
        at the other end.
     Open flank (Fort.), the part of the flank covered by the
     Open-front furnace (Metal.), a blast furnace having a
     Open harmony (Mus.), harmony the tones of which are widely
        dispersed, or separated by wide intervals.
     Open hawse (Naut.), a hawse in which the cables are
        parallel or slightly divergent. Cf. Foul hawse, under
     Open hearth (Metal.), the shallow hearth of a reverberatory
     Open-hearth furnace, a reverberatory furnace; esp., a kind
        of reverberatory furnace in which the fuel is gas, used in
        manufacturing steel.
     Open-hearth process (Steel Manuf.), a process by which
        melted cast iron is converted into steel by the addition
        of wrought iron, or iron ore and manganese, and by
        exposure to heat in an open-hearth furnace; -- also called
        the Siemens-Martin process, from the inventors.
     Open-hearth steel, steel made by an open-hearth process; --
        also called Siemens-Martin steel.
     Open newel. (Arch.) See Hollow newel, under Hollow.
     Open pipe (Mus.), a pipe open at the top. It has a pitch
        about an octave higher than a closed pipe of the same
     Open-timber roof (Arch.), a roof of which the
        constructional parts, together with the under side of the
        covering, or its lining, are treated ornamentally, and
        left to form the ceiling of an apartment below, as in a
        church, a public hall, and the like.
     Open vowel or Open consonant. See Open, a., 9.
        [1913 Webster]
     Note: Open is used in many compounds, most of which are
           self-explaining; as, open-breasted, open-minded.
           [1913 Webster]
     Syn: Unclosed; uncovered; unprotected; exposed; plain;
          apparent; obvious; evident; public; unreserved; frank;
          sincere; undissembling; artless. See Candid, and
          [1913 Webster]

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