What does the term Neoglacial describe in Holocene climate history?

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A detailed geologic time scale chart displaying Earth's history from the Hadean Eon over 4.5 billion years ago to the present, organized by eons, eras, periods, epochs, and ages with color-coded columns and corresponding dates in millions of years. — Holocene Epoch The stratigraphic chart of geologic time.

In the context of Holocene climate history, the term Neoglacial describes a period characterized by a cooling trend that occurred over the millennia following the Mid-Holocene Climatic Optimum.1

During this interval, global conditions cooled relative to the warmer temperatures experienced during the middle Holocene (roughly 5,000–7,000 years ago). In middle latitudes, this cooling trend was marked by intermittent periods of advancing and retreating mountain glaciers. While these glacial fluctuations were far more modest than the massive continental ice sheets of the Pleistocene Epoch, they are considered reminiscent of those larger-scale glacial cycles.1