ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wiktionary
出典:『Wiktionary』 (2026/03/07 21:21 UTC 版)
A genericization from a trade name of the 1940s, Perma-Stone, itself a proprialization from what had previously been a lexical gap affixation, perma- + stone.
permastone (uncountable)
permastone