noun

• a Roman cognomen, notably borne by Publius Licinius Valerianus, a Roman emperor
• A Russian male given name from Russian
• A hardy perennial flowering plant, Valeriana officinalis, with heads of sweetly scented pink or white flowers.
• More generally, any plant of the genus Valeriana.
• (uncountable) The root of Valeriana officinalis, used in herbal medicine.
• An extract of the dried roots of the Valeriana officinalis used in herbal medicine as a sedative.