cortinaPronunciation: /kɔːˈtʌɪnə, -ˈtiːnə/Definition of cortina noun Botany (in some toadstools) a thin web-like veil extending from the edge of the cap to the stalk. Derivatives cortinate adjective Origin: mid 19th century: from late Latin, literally 'curtain'cortina in other Oxford dictionaries Definition of cortina in the US English dictionary