Tow-head \Tow"-head`\, n. 1. An urchin who has soft, whitish hair. [Colloq.] [1913 Webster] 2. (Zool.) The hooded merganser. [ Local, U. S. ] [1913 Webster] 3. A low alluvial island or shoal in a river. [Local, U. S.] [Webster 1913 Suppl.]