nucleus
英['nju?kl??s]
美['nukl??s]
- n. 核，核心；原子核
詞態(tài)變化
復(fù)數(shù):?nuclei;
助記提示
1. nuc- + -le- (diminutive affix) + -us (Latin suffix).
2. literally "little nut".
3. => kernel of a nut.
中文詞源
nucleus 原子核，細(xì)胞核
來自拉丁語nux,果仁，核，詞源同nut.引申詞義原子核，細(xì)胞核。
英文詞源
- nucleus
- nucleus: see nut
- nucleus (n.)
- 1704, "kernel of a nut," 1708, "head of a comet," from Latin nucleus "kernel," from nucula "little nut," diminutive of nux (genitive nucis) "nut," from PIE *kneu- "nut" (cognates: Middle Irish cnu, Welsh cneuen, Middle Breton knoen "nut," Old Norse hnot, Old English hnutu "nut"). General sense of "central part or thing, about which others cluster" is from 1762. Use in reference to cells first recorded 1831. Modern atomic meaning is 1912, first by Ernest Rutherford, though theoretical use for "central point of an atom" is from 1844, in Faraday.
雙語例句
- 1. The repulsive force within the nucleus is enormous.
- 核子內(nèi)部的斥力是巨大的。
來自柯林斯例句
- 2. the nucleus of a cell
- 細(xì)胞核
來自《權(quán)威詞典》
- 3. These paintings will form the nucleus of a new collection.
- 這些畫將構(gòu)成新的收藏系列的基礎(chǔ)。
來自《權(quán)威詞典》
- 4. These young people formed the nucleus of the club.
- 這些年輕人成了俱樂部的核心.
來自《簡明英漢詞典》
- 5. The nucleus of an atom consists of neutrons, protons and other particles.
- 原子核由中子 、 質(zhì)子和其他粒子構(gòu)成.
來自《簡明英漢詞典》