nemesiaPronunciation: /nɪˈmiːʒə/Definition of nemesia noun a plant related to the snapdragon, which is cultivated for its colourful funnel-shaped flowers. Genus Nemesia, family Scrophulariaceae: several species, in particular N. strumosa and its hybrids Origin:modern Latin, from Greek nemesion, denoting various similar plantsnemesia in other Oxford dictionaries Definition of nemesia in the US English dictionary