noun
slope; sloping
Only when written 傾れ
Refers to a slope or the state of being sloped. The kanji 傾れ is specifically associated with this meaning, but the word is almost always written in kana.
古い文献に「傾れ」の語が見られるが、現代では「なだれ」と書くのが普通だ。
The word 傾れ appears in old documents, but nowadays it is normally written as なだれ.
noun
glaze rundown; uneven glaze on pottery
Specialized term in ceramics for a defect or effect where glaze runs down unevenly. Rare outside pottery contexts.
この茶碗にはなだれがあって、それがかえって味わいになっている。
This tea bowl has a glaze rundown, which actually adds to its charm.
Homophone meaning 'avalanche'; completely different word and much more common. Do not confuse the rare 傾れ/頽れ with 雪崩.
Derived from the verb 傾れる (なだれる, 'to slope, incline'), which is archaic. The kanji 傾 and 頽 both carry meanings of leaning or collapsing.