DICT.TW Dictionary Taiwan

 Del·toid a.
 1. Shaped like the Greek Δ (delta); delta-shaped; triangular.
 Deltoid leaf Bot., a leaf in the form of a triangle with the stem inserted at the middle of the base.
 Deltoid muscle Anat., a large triangular muscle covering the shoulder joint, which serves to raise the arm directly upward.
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 deltoid muscle
      n : a large triangular muscle covering the shoulder joint and
          serving to abduct and flex and extend and rotate the arm
          [syn: deltoid, musculus deltoideus]