a two-masted ship with a square-rigged foremast and a fore-and-aft-rigged mainmast
A two-masted vessel with a square-rigged foremast and a schooner-rigged mainmast.
(plural hermaphrodite brigs)
(nautical) a two-masted sailing ship which has square sails on the foremast combined with a schooner rig on the mainmast (triangular topsail over a gaff mainsail). As such it has a mix of the two main types of sail plan, hence the term hermaphrodite.