say it: vuh-LIR-ee-uhn
valerian is a noun meaning "a plant of the genus Valeriana having lobed or dissected leaves and cymose white or pink flowers". It carries one recorded sense.
a plant of the genus Valeriana having lobed or dissected leaves and cymose white or pink flowers
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 valerian 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.