tepalPronunciation: /ˈtɛp(ə)l, ˈtiːp(ə)l/Definition of tepal noun Botany a segment of the outer whorl in a flower that has no differentiation between petals and sepals. Origin: mid 19th century: from French tépale, blend of pétale 'petal' and sépal 'sepal'tepal in other Oxford dictionaries Definition of tepal in the US English dictionary