- atom nucleus
- атомное ядро
English-russian plastics terminology dictionary. 2013.
atom nucleus
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Nucleus — may refer to: Nucleus (atomic structure), the very dense region at the center of an atom Cell nucleus, the control center of a cell, which contains the cell s chromosomal DNA Nucleus (neuroanatomy), a cluster of neurons in the central nervous… … Wikipedia
nucleus — [no͞o′klē əs, nyo͞o′klē əs] n. pl. nuclei [no͞o′klēī΄, nyo͞o′klēī΄] or nucleuses [ModL < L, a nut, kernel, for nuculeus, dim. < nux (gen. nucis), NUT] 1. a thing or part forming the center around which other things or parts are grouped or… … English World dictionary
atom — [at′əm] n. [ME attome < OFr atome < L atomus < Gr atomos, uncut, indivisible, atom < a , not + tomos < temnein, to cut: see TOMY] 1. Obs. any of the indivisible particles postulated by philosophers as the basic component of all… … English World dictionary
nucleus — (n.) 1704, kernel of a nut, 1708, head of a comet, from L. nucleus kernel, from nucula little nut, dim. of nux (gen. nucis) nut, from PIE *kneu nut (Cf. M.Ir. cnu, Welsh cneuen, M.Bret. knoen nut, O.N … Etymology dictionary
atom — ► NOUN 1) the smallest particle of a chemical element, consisting of a positively charged nucleus surrounded by negatively charged electrons. 2) an extremely small amount: she did not have an atom of strength left. ORIGIN from Greek atomos… … English terms dictionary
nucleus — ► NOUN (pl. nuclei) 1) the central and most important part of an object or group. 2) Physics the positively charged central core of an atom, containing nearly all its mass. 3) Biology a structure present in most cells, containing the genetic… … English terms dictionary
atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… … Universalium
Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… … Wikipedia
Atom — The smallest part of any material that cannot be broken up by chemical means. Each atom has a center (the nucleus) which contains protons and neutrons. Electrons orbit around the nucleus. The atom is primarily empty space. If the nucleus of an… … Medical dictionary
nucleus — /nooh klee euhs, nyooh /, n., pl. nuclei / klee uy /, nucleuses. 1. a central part about which other parts are grouped or gathered; core: A few faithful friends formed the nucleus of the club. 2. Biol. a specialized, usually spherical mass of… … Universalium
Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… … Medical dictionary
