lactam

From lac(tone) +‎ am(ide).

lactam (plural lactams)

1. (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.

Greek prefixes indicate the ring size e.g. α- 3-membered, β- 4-membered.

• β-lactam

• alpha-lactam
• beta-lactam

• IPA^(key): /laħˈtam/, [lʌħˈtʌm]
• Hyphenation: lac‧tam

lactám m (plural lactamitté f)

1. sixty

• When used as a determiner, the genitive case is used:

  Lactám númu. ― Sixty people.

• When counting, the predicative case is used.

• 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)‎, Paris: Université Sorbonne Paris Cité (doctoral thesis), page 197

lactam

1. third-person plural present indicative of lactar