Definition

• n. the central part of something that other things develop around
• n. the central part of an atom, containing protons and neutrons
• n. the part of a cell that contains DNA and controls its growth

Example

The nucleus of the cell contains most of its genetic material.

细胞核中含有细胞大部分的遗传物质。

Word familynucle-

adj.

nuclearL2