Main Entry: Hy·dra

Pronunciation: \ˈhī-drə\

Variant(s): or ModGk Ídhra \ˈēth-rä\

Function: geographical name

island Greece in S Aegean Sea off E coast of Peloponnese area 20 square miles (52 square kilometers), population 2794

— Hy·dri·ot \ˈhī-drē-ət, -drē-ˌät\ or Hy·dri·ote \-ˌōt, -ət\ noun