Pertaining to or formed during the time interval between two successive glacial epochs or between two glacial stages. Ther term implies both the melting of ice sheets to about their present level, and the maintenance of a warm climate for a sufficient length of time to permit certain vegatational changes to occur.
A period of warm climate during the Pleistocene (and earlier glacial epochs) during which continental glaciers retreated to minimum extent. Interglacials have been of approximately 10 000 years duration, spaced at approximately 100 000-year intervals over the last 1 000 000 years. The last 10 000 years, or postglacial, is generally considered to be an interglacial.
An Interglacial is a geological interval of warmer global average temperature that separates glacials, or ice ages. The current Holocene interglacial has persisted since the Pleistocene, about 11,400 years ago.