ˈænjuəl
61nuchal — [ nju:k(ə)l] adjective Anatomy relating to the nape of the neck. Origin C19: from obs. nucha nape (from med. L. nucha medulla oblongata ) + al …
62nuci- — [ nju:si] combining form of a nut or nuts: nuciferous. Origin from L. nux, nuc nut …
63nuciferous — [nju: sɪf(ə)rəs] adjective Botany bearing nuts …
64nuclease — [ nju:klɪeɪz] noun Biochemistry an enzyme that cleaves nucleic acid chains into smaller units …
65nucleic acid — [nju: kli:ɪk, kleɪɪk] noun Biochemistry a complex organic substance, especially DNA or RNA, whose molecules consist of long chains of nucleotides …
66nucleolus — [ˌnju:klɪ əʊləs] noun (plural nucleoli lʌɪ) Biology a small dense spherical structure in a cell nucleus during interphase. Derivatives nucleolar adjective Origin C19: from late L., dimin. of L. nucleus (see nucleus) …
67nucleon — [ nju:klɪɒn] noun Physics a proton or neutron …
68nucleonics — [ˌnju:klɪ ɒnɪks] plural noun [treated as sing.] the branch of science and technology concerned with atomic nuclei and nuclear power. Derivatives nucleonic adjective Origin 1940s: from nuclear, on the pattern of electronics …
69nucleophilic — [ˌnju:klɪə(ʊ) fɪlɪk] adjective Chemistry having a tendency to donate electrons or react with protons. Often contrasted with electrophilic. Derivatives nucleophile noun …
70nucleus — [ nju:klɪəs] noun (plural nuclei lɪʌɪ) 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,… …
