fruticosePronunciation: /ˈfruːtɪkəʊz, -s/Definition of fruticose adjective Botany (of a lichen) having upright or pendulous branches. Origin: mid 17th century: from Latin fruticosus, from frutex, frutic- 'bush, shrub'fruticose in other Oxford dictionaries Definition of fruticose in the US English dictionary