Geological term for an accumulation of glacial debris. The cross-reference モレーン is the more common loanword equivalent.
See also: モレーン
A moraine is an accumulation of rock debris transported by a glacier.
Compound of 氷 (ice/glacier), 堆 (pile/heap), and 石 (stone/rock), literally 'glacier-piled stones'. The exact historical derivation is uncertain; the spelling is conventionally associated with the geological meaning.