| 正面 | 7050.nucleus 英 ['njuːklɪəs]美 ['nuklɪəs]     |
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| 背面 |      释义： 1. nuc- + -le- (diminutive affix) + -us (Latin suffix).2. literally "little nut".3. => kernel of a nut.n. 核，核心；原子核 例句： 1. The repulsive force within the nucleus is enormous.核子内部的斥力是巨大的。 nucleus 原子核，细胞核来自拉丁语nux,果仁，核，词源同nut.引申词义原子核，细胞核。 nucleusnucleus: see nutnucleus (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." |