By Lenn Thompson, Editor and Publisher Merriam-Webster Online defines the word coalescence: "to unite into a whole" or "to arise from the combination of distinct elements." Given that, the folks at Shinn Estate Vineyards have chosen an unique, apt name for this blend of 54% chardonnay 23% sauvignon blanc 13% viognier 10% merlot, Shinn Estate Vineyards 2008 Coalescence ($14 at the tasting room). The four wines were vinified separately, and then came together, or "coalesced" into one wine. That 10% merlot, which was actually merlot blanc, gives this "white wine" a mere suggestion of pink. This bottle showed a little…