also: ウィルム
noun
wyrm; limbless dragon
Fantasy term for a dragon-like creature without limbs, often depicted as a giant serpent. Used mainly in games, fiction, and mythology.
そのゲームでは、ワイアームは翼のない巨大な蛇のようなドラゴンとして登場する。
In that game, the wyrm appears as a huge serpentine dragon without wings.