The Collaborative International Dictionary of English v.0.48:

Cuneiform \Cu*ne"i*form\ (k?-n?"?-f?rm), Cuniform \Cu"ni*form\
   (k?"n?-f?rm), a. [L. cuneus a wedge + -form: cf. F.
   cunei-forme. See Coin.]
   1. Wedge-shaped; as, a cuneiform bone; -- especially applied
      to the wedge-shaped or arrowheaded characters of ancient
      Persian and Assyrian inscriptions. See Arrowheaded.
      [1913 Webster]

   2. Pertaining to, or versed in, the ancient wedge-shaped
      characters, or the inscriptions in them. "A cuneiform
      scholar." --Rawlinson.
      [1913 Webster] Cuneiform

The Collaborative International Dictionary of English v.0.48:

Cuneiform \Cu*ne"i*form\, Cuniform \Cu"ni*form\, n.
   1. The wedge-shaped characters used in ancient Persian and
      Assyrian inscriptions. --I. Taylor (The Alphabet).
      [1913 Webster]

   2. (Anat.)
      (a) One of the three tarsal bones supporting the first,
          second third metatarsals. They are usually designated
          as external, middle, and internal, or ectocuniform,
          mesocuniform, and entocuniform, respectively.
      (b) One of the carpal bones usually articulating with the
          ulna; -- called also pyramidal and ulnare.
          [1913 Webster]

WordNet (r) 3.0 (2006):

cuneiform
    adj 1: shaped like a wedge [syn: wedge-shaped, cuneal,
           cuneiform]
    2: of or relating to the tarsal bones (or other wedge-shaped
       bones)
    n 1: an ancient wedge-shaped script used in Mesopotamia and
         Persia

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "cuneiform":
   arrowhead, character, cuneate, cuneated, deltoid,
   demotic character, determinative, grammalogue, hieratic symbol,
   hieroglyph, hieroglyphic, hieroglyphics, hiragana, ideogram,
   ideograph, kana, katakana, logogram, logograph, ogham, oxygonal,
   phonetic, phonetic symbol, pictogram, pictograph, radical, rune,
   shorthand, triangular, trigonal, trilateral, wedge, word letter