ruel-bone

短语

词形变化

ruel-bones 复数 ruel-bones

释义与例句

n.
  1. 1.

    A piece of ivory, generally from a marine mammal.

    古体 文学

词源

Learned borrowing from Middle English rewell bon, ruel bon (“walrus ivory”), from Old French roal, rohal (“walrus ivory”), ultimately from Old Norse hrosshvalr (“walrus”).

来源：wiktionary