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“nuclei”
nucleus (s), nuclei (pl)
1. The central portion of an atom which has a positive charge and contains most of the atom's mass.
2. A comet which has a chunk of solid matter at the center of a comet's head.
3. The central part of a spiral galaxy that is very dense with stars.
2. A comet which has a chunk of solid matter at the center of a comet's head.
3. The central part of a spiral galaxy that is very dense with stars.
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 17)