Homonym: 核 (Core)
“核” (kaku) is the Japanese word for "nucleus" or "core." In a scientific context, it refers to the central part of an atom, which contains protons and neutrons. The nucleus is essential for understanding atomic structure and the behavior of elements in chemistry and physics.
In a broader context, “核” can also refer to the core or center of something, such as the nucleus of a cell in biology. It plays a crucial role in various fields, including nuclear energy, cell biology, and particle physics, highlighting its importance in both natural and technological processes.