The Collaborative International Dictionary of English v.0.48:

Chardonnay \Char`don*nay"\ (ch[aum]r`d'n*[=a]"), n.
   1. a white wine grape.
      [WordNet 1.5]

   2. dry white Chablis-type table wine made from Chardonnay
      grapes.

   Syn: Pinot Chardonnay.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Chardonnay
    n 1: white wine grape [syn: Chardonnay, chardonnay grape]
    2: dry white table wine resembling Chablis but made from
       Chardonnay grapes [syn: Chardonnay, Pinot Chardonnay]