Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford American Dictionary

   nucleus

   • IPA[ˈno͞oklēəs]

   美式

   • 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 film-producing industry 同義詞 core, center, 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 gray matter in the central nervous system.
   • ▪ the solid part of the head of a comet.