"Stadial" Natural Recordings by Native Speakers
A fairly obscure word!
Stadial refers to a phase or stage in a glacial period, characterized by the expansion of a glacier. It can also be used more broadly to describe a stage or phase of a process or development, particularly one that is slow-moving or long-term.
In other words, a stadial is a significant and noticeable phase of growth, change, or development, often with its own distinct characteristics and features.
For example: "The stadial development of the ice sheets during the last glacial period had a profound impact on the global climate and geography."