twin-screw steamer

1 definition found

twin-screw steamer - Collaborative International Dictionary of English v.0.48 :

  Twin \Twin\ (tw[i^]n), a. [OE. twin double, AS. getwinne two and
     two, pl., twins; akin to D. tweeling a twin, G. zwilling,
     OHG. zwiniling, Icel. tvennr, tvinnr, two and two, twin, and
     to AS. twi- two. See Twice, Two.]
     1. Being one of two born at a birth; as, a twin brother or
        sister.
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     2. Being one of a pair much resembling one another; standing
        in the relation of a twin to something else; -- often
        followed by to or with. --Shak.
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     3. (Bot.) Double; consisting of two similar and corresponding
        parts.
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     4. (Crystallog.) Composed of parts united according to some
        definite law of twinning. See Twin, n., 4.
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     Twin boat, or Twin ship (Naut.), a vessel whose deck and
        upper works rest on two parallel hulls.
  
     Twin crystal. See Twin, n., 4.
  
     Twin flower (Bot.), a delicate evergreen plant (Linnaea  borealis
        ) of northern climates, which has pretty,
        fragrant, pendulous flowers borne in pairs on a slender
        stalk.
  
     Twin-screw steamer, a steam vessel propelled by two screws,
        one on either side of the plane of the keel.
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