noun
superposition; overlaying; layering together
Primarily a technical term in physics and engineering for the principle of superposition, but also used more generally for the act of placing things on top of each other or combining layers.
量子力学では、状態の重ね合わせが重要な概念です。
In quantum mechanics, superposition of states is an important concept.
画像編集ソフトで複数のレイヤーを重ね合わせて、一つの絵に仕上げた。
I overlaid multiple layers in image editing software to create a single picture.