Side Effects and Warnings. Melatonin is likely safe when taken by mouth in commonly studied doses for up to three months, typically 1-20 milligrams. In children, melatonin is likely safe for long-term use in recommended doses.ide Effects and Warnings. Melatonin is likely safe when taken by mouth in commonly studied doses for up to three months, typically 1-20 milligrams. In children, melatonin is likely safe for long-term use in recommended doses.
monoclenoun [ C ] uk â /ËmÉn.É.kÉl/ us â /ËmÉË.nÉ.kÉl/. âº a round piece of glass worn, especially in the past, in front of one eye in order to help you to see more clearly. Thesaurus: synonyms and related words. Eyesight, glasses & lenses. (as) blind as a bat idiom. 20/20 vision.
Definition. noun, plural: monomers. (1) A molecule that may react chemically to another molecule of the same type to form a larger molecule, such as dimer, trimer, tetramer, polymer, etc. (2) The simplest unit, or the repeating unit, of a polymer. Supplement. A monomer may combine with another monomer through chemical bonds to form a larger molecule, as in a polymer. Examples of monomers are amino acids that link together by a peptide bond forming a polypeptide or protein. Word origin: from Greek mono one and meros part.