Chersonese \Cher"so*nese\ (k[~e]r"s[-o]*n[=e]s), n. [Gr. cherso`nhsos; che`rsos land + nh`sos island.] A peninsula; a tract of land nearly surrounded by water, but united to a larger tract by a neck of land or isthmus; as, the Cimbric Chersonese, or Jutland; the Tauric Chersonese, or Crimea.