L2 Syllabification: (L)Pronunciation: /el/Translate L | into French | into German | into Italian | into Spanish Definition of L abbreviation (in tables of sports results) games lost. Chemistry levorotatory:L-tryptophan (L.) Lake, Loch, or Lough (chiefly on maps):L. Ontario large (as a clothes size). Latin. Liberal. (L.) Linnaeus (as the source of names of animal and plant species):Swallowtail Butterfly Papilio machaon (L., 1758) lire. symbol Chemistry Avogadro’s number. Physics inductance. L in other Oxford dictionaries Definition of L in the British & World English dictionary