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English
Etymology
From poly- + glacial.
Adjective
polyglacial (not comparable)
- Pertaining to multiple periods of glacial formation separated by warmer interglacial periods.
2009, Vaclav Cilek, Earth System: History and Natural Variability, page 462:The polyglacial concept (that is, the existence of many glacial periods and climate cyclicity) became accepted.
2012, H.-E. Reineck, I. B. Singh, Depositional Sedimentary Environments:Our knowledge of Pleistocene glaciation has clearly shown that an ice age is not monoglacial, but polyglacial; i.e., during a single ice age several colder glacial episodes alternate with warmer interglacial episodes.
2014, Jamie Woodward, The Ice Age: A Very Short Introduction, page 89:In the period leading up to World War One, there was much debate about whether the ice age involved a single phase of ice sheet growth and freezing climate (the monoglacial theory) or several phases of ice sheet build up and decay separated by warm interglacials (the polyglacial theory).