lemon sole

from The Century Dictionary.

• noun In New South Wales, Paraplagusia unicolor, of the family Pleuronectidæ or flatfishes; also, in New Zealand, the New Zealand turbot.
• noun A fish of the family Soleidæ, Solea lascaris.
• noun The smeardab, Hippoglossoides limandoides.
• noun Also lemon-dab.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A European flatfish, Microstomus kitt

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun important American food fish in the winter
• noun European flatfish highly valued as food
• noun highly valued almost pure white flesh
• noun popular pale brown food flatfish of the Pacific coast of North America
• noun flesh of American flounder; important in the winter
• noun small European sole