| 释义 |
nuclear
nu·cle·ar N0184900 (no͞o′klē-ər, nyo͞o′-)adj.1. Biology Of, relating to, or forming a nucleus of a cell: a nuclear membrane.2. Physics a. Of or relating to atomic nuclei: a nuclear chain reaction.b. Using or derived from the energy of atomic nuclei: nuclear power.3. Of, using, or possessing atomic or hydrogen bombs: nuclear war; nuclear nations.4. Drastic or extreme; radical: "The Senate majority leader ... had vowed to invoke what some have called the nuclear option to do away with judicial filibusters" (Carl Hulse).
[From nucleus.]Usage Note: The pronunciation (no͞o′kyə-lər), which is generally considered incorrect, is an example of how a familiar phonological pattern can influence an unfamiliar one. The usual pronunciation of the final two syllables of this word is (-klē-ər), but this sequence of sounds is rare in English. Much more common is the similar sequence (-kyə-lər), which occurs in words like particular, circular, spectacular, and in many scientific words like molecular, ocular, and vascular. Adjusted to fit into this familiar pattern, the (-kyə-lər) pronunciation is often heard in high places. It is not uncommon in the military in association with nuclear weaponry, and it has been observed in the speech of US presidents, including Dwight D. Eisenhower and George W. Bush. The prominence of these speakers, however, has done little to brighten the appeal of (no͞o′kyə-lər), which was considered acceptable to only 10 percent of the Usage Panel in our 2004 survey.nuclear (ˈnjuːklɪə) adj1. (General Physics) of, concerned with, or involving the nucleus of an atom: nuclear fission. 2. (Biology) biology of, relating to, or contained within the nucleus of a cell: a nuclear membrane. 3. of, relating to, forming, or resembling any other kind of nucleus4. (General Physics) of, concerned with, or operated by energy from fission or fusion of atomic nuclei: a nuclear weapon. 5. (Military) involving, concerned with, or possessing nuclear weapons: nuclear war; a nuclear strike. nu•cle•ar (ˈnu kli ər, ˈnyu-; by metathesis -kyə lər)
adj. 1. pertaining to or involving atomic weapons. 2. powered by atomic energy. 3. having atomic weapons: a nuclear submarine. 4. of or forming a nucleus: nuclear particles. [1840–50; compare French nucléaire] pron: The second and third syllables of nu•cle•ar are commonly pronounced as (-kli ər) which can be transcribed more broadly as (-klə yər) The somewhat controversial pronunciation of these two syllables as (-kyə lər) prominent in recent years, results from a process of metathesis in which the sounds (l) and (y) change places. This pronunciation, reinforced by analogy with words like molecular, is disapproved of by many, although it occurs among such highly educated speakers as scientists, professors, and government officials. nu·cle·ar (no͞o′klē-ər)1. Relating to or forming a cell nucleus.2. Relating to atomic nuclei.3. Using energy derived from the nuclei of atoms: a nuclear power plant.Usage The words nuclear and atomic mean the same thing when referring to weapons or to the making of power: We say nuclear (or atomic) weapons and nuclear (or atomic) energy. But in most scientific uses nuclear and atomic mean different things. Nuclear is used to refer to the nucleus of an atom, where the protons and neutrons are located. When a radioactive element gives off a neutron, for example, we call this a nuclear event. Atomic, by contrast, is used to refer to the outer layers of the atom, where the electrons that orbit about the nucleus are located. So when two or more atoms share electrons to form a covalent bond, we call this an atomic interaction.Thesaurus| Adj. | 1. | nuclear - (weapons) deriving destructive energy from the release of atomic energy; "nuclear war"; "nuclear weapons"; "atomic bombs"atomicconventional - (weapons) using energy for propulsion or destruction that is not nuclear energy; "conventional warfare"; "conventional weapons" | | 2. | nuclear - of or relating to or constituting the nucleus of an atom; "nuclear physics"; "nuclear fission"; "nuclear forces"natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics" | | 3. | nuclear - of or relating to or constituting the nucleus of a cell; "nuclear membrane"; "nuclear division"biological science, biology - the science that studies living organisms | | 4. | nuclear - constituting or like a nucleus; "annexation of the suburban fringe by the nuclear metropolis"; "the nuclear core of the congregation"central - in or near a center or constituting a center; the inner area; "a central position" |
Translationsnucleus (ˈnjuːkliəs) – plural ˈnuclei (-kliai) – noun1. the central part of an atom. 原子核 原子核2. the part of a plant or animal cell that controls its development. 細胞核 细胞核nuclear (ˈnjuːkliə) adjective1. using atomic energy. a nuclear power station; nuclear weapons. 核能的 原子能的2. of a nucleus. 核心的 核心的ˈnuclear device noun a device or a weapon that contains a nuclear bomb. 核爆裝置 核装置nuclear disarmament the act of ceasing to store atomic weapons. 裁減和限制核武 裁减核武器协定，核裁军 nuclear energy atomic energy. 核能 核能nuclear reactor an apparatus for producing nuclear energy. 核子反應爐 核反应堆
nuclear
nuclear option1. The use of nuclear weapons, as by the military, often considered a last resort. I'm worried about the repercussions if our military officials choose the nuclear option.2. In the US Senate, a course of action allowing the majority party to end filibustering with a simple majority, rather than the usually required supermajority of 60%. Senators could, however, use the nuclear option to approve that nomination.3. An especially drastic decision or action. Calling the CEO about this issue is definitely the nuclear option—let's see what we can do on our own first.See also: nuclear, optiongo nuclear1. To use nuclear weapons, as by the military, often considered a last resort. I'm worried about the repercussions if our military officials decide to go nuclear.2. In the US Senate, to pursue a course of action allowing the majority party to end filibustering with a simple majority, rather than the usually required supermajority of 60%. Senators could, however, go nuclear and approve this nomination.3. To behave wildly. You only turn 21 once, so I plan to go nuclear at my birthday party this weekend!4. To aggressively express one's anger. When mom finds out you dented her brand-new car, she's going to go nuclear!5. To take drastic action. Whoa, calling the CEO about this issue is definitely going nuclear—let's see what we can do on our own first.See also: go, nucleargo nuclear mainly BRITISH, INFORMALIf someone goes nuclear, they get extremely angry and start shouting or behaving violently. The row during which he went nuclear and resigned from his post was much reported in the press. Compare with go ballistic.See also: go, nuclearnuclear
nuclear1. of, concerned with, or involving the nucleus of an atom 2. Biology of, relating to, or contained within the nucleus of a cell 3. of, concerned with, or operated by energy from fission or fusion of atomic nuclei nuclear[′nü·klē·ər] (chemistry) Pertaining to a group of atoms joined directly to the central group of atoms or central ring of a molecule. (nucleonics) Pertaining to nuclear energy. (nuclear physics) Pertaining to the atomic nucleus. nuclear
nuclear [noo´kle-ar] pertaining to a nucleus.nuclear magnetic resonance a phenomenon exhibited by many atomic nuclei: when placed in a constant magnetic field, the nuclei absorb electromagnetic radiation at a few characteristic frequencies. By applying an external magnetic field to a solution in a constant radio frequency field, it is possible to determine the structure of an unknown compound. An application of this technique, called magnetic resonance imaging, permits imaging of soft tissues of the body by distinguishing between hydrogen atoms in different environments.nuclear medicine technologist a health care professional whose duties include positioning and attending to patients undergoing medicine" >nuclear medicine procedures, operating imaging devices (scintillation cameras and rectilinear scanners) under the direction of the nuclear medicine physician, preparing radiopharmaceuticals for administration to patients, making dose calculations for in vivo procedures, performing quality control procedures, and utilizing a knowledge of radiation physics and radiation safety to minimize the radiation exposure to patients, to the technologist and coworkers, and to the public. There are currently three organizations that certify nuclear medicine technologists: the American Registry of Radiologic Technologists (ARRT), the American Society of Clinical Pathologists (ASCP), and the Nuclear Medicine Technology Certification Board (NMTCB). Individuals certified by the ARRT are designated RT(N)(ARRT); those certified by the ASCP are designated NM(ASCP); and those certified by the NMTCB are designated CNMT.nu·cle·ar (nū'klē-ĕr), Avoid the mispronunciation nū'kyu-lar.Relating to a nucleus, either cellular or atomic; in the latter sense, usually referring to radiation emanating from atomic nuclei (α, β, or γ) or to atomic fission.nuclear (no͞o′klē-ər, nyo͞o′-)adj.1. Biology Of, relating to, or forming a nucleus of a cell: a nuclear membrane.2. Physics a. Of or relating to atomic nuclei: a nuclear chain reaction.b. Using or derived from the energy of atomic nuclei: nuclear power.3. Of, using, or possessing atomic or hydrogen bombs: nuclear war; nuclear nations.4. Drastic or extreme; radical: "The Senate majority leader ... had vowed to invoke what some have called the nuclear option to do away with judicial filibusters" (Carl Hulse).nu·cle·ar (nū'klē-ăr) Relating to a nucleus, either cellular or atomic; in the latter sense, usually referring to radiation emanating from atomic nuclei (α, β, or γ) or to atomic fission. NUCLEAR
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nuclear
Related to nuclear: Nuclear war, Nuclear weapons, Nuclear stress testSynonyms for nuclearadj (weapons) deriving destructive energy from the release of atomic energySynonymsAntonymsadj of or relating to or constituting the nucleus of an atomRelated Words- natural philosophy
- physics
adj of or relating to or constituting the nucleus of a cellRelated Words- biological science
- biology
adj constituting or like a nucleusRelated Words |