nucleus
nucleus
[ˈnjuːklɪəs]
(pl. nuclei -lɪʌɪ)
[ˈnjuːklɪəs]
(pl. nuclei -lɪʌɪ)
- the central and most important part of an object, movement, or group, forming the basis for its activity and growth
核心
the nucleus of a British film-producing industry.
英国电影制作业的核心。
■(Astronomy)the solid part of a comet's head
(天文)（彗星的）核
■(Physics)the positively charged central core of an atom that contains most of its mass
(物理)原子核
■(Biology)a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material
(生)细胞核
■a discrete mass of grey matter in the central nervous system
神经核
- early 18th cent.: from Latin, literally kernel, inner part', diminutive of nux, nuc- 'nut'
考试词汇表
