noun, feminine/ly.zɛʁn/plural: luzernes
alfalfa (Medicago sativa)
Related: luzerne arborescente, luzerne d'Arabie, luzerne lupuline, luzerne marine, luzerne orbiculaire, luzernière
Borrowed from Occitan lusèrna (“glowworm”), a reference to its shiny seeds, from Latin lucerna (“lamp”).