Source : Webster's Revised Unabridged Dictionary (1913)

Nominal \Nom"i*nal\, a. [L. nominalis, fr. nomen, nominis, name.
   See {Name}.]
   1. Of or pertaining to a name or names; having to do with the
      literal meaning of a word; verbal; as, a nominal
      definition. --Bp. Pearson.

   2. Existing in name only; not real; as, a nominal difference.
      ``Nominal attendance on lectures.'' --Macaulay.

Nominal \Nom"i*nal\, n.
   1. A nominalist. [Obs.] --Camden.

   2. (Gram.) A verb formed from a noun.

   3. A name; an appellation.

            A is the nominal of the sixth note in the natural
            diatonic scale.                       --Moore
                                                  (Encyc. of
                                                  Music. )

Source : WordNet®

nominal
     adj 1: relating to or constituting or bearing or giving a name;
            "the Russian system of nominal brevity"; "a nominal
            lists of priests"; "taxable males as revealed by the
            nominal rolls"
     2: insignificantly small; a matter of form only (`tokenish' is
        informal); "the fee was nominal"; "a token gesture of
        resistance"; "a tokenish gesture" [syn: {token(a)}, {tokenish}]
     3: pertaining to a noun or to a word group that functions as a
        noun; "nominal phrase"; "noun phrase"
     4: being value in terms of specification on currency or stock
        certificates rather than purchasing power; "nominal or
        face value" [ant: {real}]
     5: named; bearing the name of a specific person; "nominative
        shares of stock" [syn: {nominative}]
     6: being such in name only; "the nominal (or titular) head of
        his party" [syn: {titular}]