燃もえかす

noun

cinders; embers; ashes

Refers to the burnt remains after something has burned, such as charcoal, wood, or paper. Often used for the glowing remnants of a fire.

• キャンプファイヤーの燃もえかすを片かた付づける。

  Clean up the cinders from the campfire.

• ストーブの燃もえかすがまだ赤あかく光ひかっている。

  The embers in the stove are still glowing red.