Wordnet 3.0
NOUN (2)
1. 
 a corporation with a small capitalization; 
- Example: "this annual conference is a showcase for ambitious small caps"2. 
 a character having the form of an upper-case letter but the same height as lower-case letters; 
[syn: small capital, small cap]
WordNet (r) 3.0 (2006):
small cap
    n 1: a corporation with a small capitalization; "this annual
         conference is a showcase for ambitious small caps"
    2: a character having the form of an upper-case letter but the
       same height as lower-case letters [syn: small capital,
       small cap]