핵

Meaning

1. 1.

   key; core; center; heart — The very center of something.

2. 2.

   nuclear weapon — A weapon powered by the force from a nuclear reaction.

3. 3.

   nucleus — A particle at the center of an atom, which is formed by a combination of neutrons and protons.

4. 4.

   nucleus — A ball-shaped, tiny substance at the center of a cell in an organism.

5. 5.

   core — The hard part inside fruits such as peaches, plums, etc., which protects their seeds.

6. 6.

   core — The central part of the Earth, which is approximately 2,900 km beneath its surface.