[f. UNI- + L. rēm-us oar, after bi-, quadri-, trireme, etc.] An ancient vessel or galley having one bank of oars.
1699. J. Potter, Antiq. Greece, III. xiv. II. 135. [A ship] betwixt an Vnireme, and Bireme, consisting of a Bank, and a half.
1799. Charnock, in Naval Chron., I. 134. The Uniremes had only one row of oars.
1900. Athenæum, 13 Aug., 221/3. The thing shown is meant for a unireme.