sprue

• IPA^(key): /spɹuː/

• Audio (US):

  (file)

• Rhymes: -uː

From Dutch spruw, sprouw. First described by William Hillary.

sprue (countable and uncountable, plural sprues)

1. (medicine) A tropical disease causing a sore throat and tongue, and disturbed digestion; psilosis.

• tropical sprue

• celiac sprue
• non-tropical sprue
• sprue asparagus

Unknown.^[1]

sprue (plural sprues)

2. (metallurgy) A channel through which molten metal is poured into the mold during the casting process.

   Synonym: downsprue

3. (metallurgy) Material that cools in the feed channels to a mold.

sprue (third-person singular simple present sprues, present participle spruing or sprueing, simple past and past participle sprued)

1. To remove the sprues (material left in feed channels) from a cast piece.
   • 1882 August 15, “Details of a brass and iron foundry”, in American Machinist‎^[1], page 3:

     In the brass spruing room is what is known as a Todd water tumbler, used for brass castings.

   • 1947, The Ney Inlay Book, J. M. Ney Company, page 17:

     The method adopted for sprueing the wax pattern is much more important to the success of the inlay than is generally realized.

   • 1976, Hazel Torres, Ann Beard Ehrlich, Modern Dental Assisting, page 662:

     The pattern is completed in its final contour, is then sprued, invested and burned out of the investment, and the gold alloy is cast in the same manner as when the indirect technique is utilized

   • 1985, Edward R. Dootz, “Technology of Casting and Soldering Alloys for Metal-Ceramic Applications”, in Conference on Recent Developments in Dental Ceramics, volume 6, numbers 1–2, page 86:

     If we are to cast a simple pattern like a small ball we have at least three methods of sprueing the wax pattern (Fig. 6).

   • 1985, Howard Hitchcock, Out of the Fiery Furnace: Casting Sculpture from Ceramic Shell Molds, Los Altos, Calif.: William Kaufmann, Inc., →ISBN, page 50:

     To provide for constructing and sprueing the wax sculpture, as described in Chapters 1 and 2, we must obviously have a wax working area, which in a foundry may also be referred to as the patternmaking area.

• rupes, Rupes, Pre-Us, re-ups, pures, super, Prues, Purse, super-, purse, reups, Super, puers

From English sprue, from Dutch spruwe (“thrush”). Originally denoted a disease of the mouth characterised by ulcers.

• IPA^(key): /spʁy/

sprue f (plural sprues)

1. sprue

• “sprue”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

• persu, Perus, Pérus, peurs, présu, prues, Puers, pures, purés, repus, reups, rupes, rupés, super

• spru

Borrowed from English sprue.

• IPA^(key): /ˈspru.e/
• Rhymes: -ue
• Hyphenation: sprù‧e

sprue f (uncountable)

1. (pathology) sprue

• antisprue

• sprue in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana

• pruse, ruspe, super, super-