A tropical tree, or its fruit, of the genus Psidium. Two varieties are well known, the P. pyriferum, or white guava, and P. pomiferum, or red guava. The fruit or berry is shaped like a pomegranate, but is much smaller. It is somewhat astringent, but makes a delicious jelly.
- Any of various tropical American shrubs and trees of the genus Psidium, especially P. guajava, having white flowers and edible fruit.
- The fruit of this plant, having sweet, usually reddish or pinkish flesh.