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

maccaroni wheat \maccaroni wheat\ n.
   a type of wheat triticum durum with hard dark-colored
   kernels high in gluten and used for bread and pasta; grown
   especially in south russia, north africa, and north central
   north america.

   syn: durum, durum wheat, hard wheat, triticum durum,
        triticum turgidum.
        wordnet 1.5
see also:
triticum durum triticum turgidum 

[2] : WordNet (r) 2.0

triticum turgidum
     n : wheat with hard dark-colored kernels high in gluten and used
         for bread and pasta; grown especially in southern russia,
         north africa, and northern central north america syn: durum,
          durum wheat, hard wheat, triticum durum, macaroni
         wheat
see also:
durum durum wheat hard wheat triticum durum macaroni wheat 

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