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[noo-klee-uh-fil-ik, nyoo-] /ˌnu kli əˈfɪl ɪk, ˌnyu-/

adjective, Chemistry.
of or relating to electron contribution in covalent bonding (opposed to ).
(chem) having or involving an affinity for positive charge. Nucleophilic reagents (nucleophiles) are molecules, atoms, and ions that behave as electron donors Compare electrophilic


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  • Nucleoprotein

    [noo-klee-uh-proh-teen, -tee-in, nyoo-] /ˌnu kli əˈproʊ tin, -ti ɪn, ˌnyu-/ noun, Biochemistry. 1. any of the class of conjugated occurring in cells and consisting of a combined with a nucleic acid, essential for cell division and reproduction. /ˌnjuːklɪəʊˈprəʊtiːn/ noun 1. a compound within a cell nucleus that consists of a protein bound to a nucleic […]

  • Nucleorrhexis

    nucleorrhexis nu·cle·or·rhex·is (nōō’klē-ə-rěk’sĭs) n. Fragmentation of a cell nucleus.

  • Nucleosidase

    [noo-klee-uh-sahy-deys, -deyz, nyoo-] /ˌnu kli əˈsaɪ deɪs, -deɪz, ˌnyu-/ noun, Biochemistry. 1. any of the class of enzymes that catalyze the hydrolysis of . nucleosidase nu·cle·o·si·dase (nōō’klē-ə-sī’dās’, -dāz’, -klē-ō’sĭ-, nyōō’-) n. Any of various enzymes that catalyze the hydrolysis of nucleosides, releasing their purine or pyrimidine base.

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