say it: LOO-surn
lucerne is a noun meaning "important European leguminous forage plant with trifoliate leaves and blue-violet flowers grown widely as a pasture and hay crop". It carries one recorded sense.
important European leguminous forage plant with trifoliate leaves and blue-violet flowers grown widely as a pasture and hay crop
Forms marked are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for lucerne come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.