lactam

التعريفات والمعاني

== English == === Etymology === From lac(tone) + am(ide). === Pronunciation === IPA(key): /ˈlækˌtæm/ === Noun === lactam (plural lactams) (organic chemistry) Any of a class of cyclic amides that are the nitrogen analogs of lactones, formed by heating amino acids; the tautomeric enol forms are known as lactims. ==== Usage notes ==== Greek prefixes indicate the ring size e.g. α- 3-membered, β- 4-membered. ==== Derived terms ==== ==== Translations ==== ==== See also ==== alpha-lactam beta-lactam == Afar == === Pronunciation === IPA(key): /laħˈtam/ [lʌħˈtʌm] Hyphenation: lac‧tam === Noun === lactám m (plural lactamitté f) sixty ==== Usage notes ==== When used as a determiner, the genitive case is used: Lactám númu. ― Sixty people. When counting, the predicative case is used. ==== Declension ==== === References === E. M. Parker; R. J. Hayward (1985), “lactam”, in An Afar-English-French dictionary (with Grammatical Notes in English), University of London, →ISBN Mohamed Hassan Kamil (2004), Parlons Afar: Langue et Culture, L'Hammartan, →ISBN, page 77 Mohamed Hassan Kamil (2015), L’afar: description grammaticale d’une langue couchitique (Djibouti, Erythrée et Ethiopie)‎[1], Paris: Université Sorbonne Paris Cité (doctoral thesis), page 197 == Portuguese == === Verb === lactam third-person plural present indicative of lactar