Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford Dictionary

   nucleus

   • IPA[ˈnjuːklɪəs]

   英式

   • n.
     the central and most important part of an object, movement, or group, forming the basis for its activity and growth；the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.

   • noun: nucleus, plural noun: nuclei

2. • 釋義

   n.

   名詞

   • 1. the central and most important part of an object, movement, or group, forming the basis for its activity and growth the nucleus of a British film-producing industry 同義詞 core, centre, central part, most important part, heart, ... 更多nub, hub, middle, midpoint, eye, kernel, focus, focal point, pivot, crux, literarynavel, rareomphalos
   • 2. the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
   • ▪ a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.
   • ▪ a discrete mass of grey matter in the central nervous system.
   • ▪ the solid part of a comet's head.