avocado Avocadoe is a pear shaped tropical fruit with green, reddish-purple or blackish skin and rich yellowish pulp enclosing a single large. The avocado falls into the latter category. There are two main classes of fleshy fruits: drupes and berries. Drupes are characterized by having a fleshy mesocarp. avocado: Fruit of Persea americana of the family Lauraceae, a tree native to the with a long, slender neck, and the colour ranges from green to dark purple.