- any of numerous tropical and subtropical American trees or shrubs belonging to the genus Psidium, of the myrtle family, especially P. guajava, bearing large, yellow, round to pear-shaped fruit, and P. littorale, bearing smaller, yellowish to deep-red, oval fruit.
- the fruit, used for making jam, jelly, etc.
- any of various tropical American trees of the myrtaceous genus Psidium, esp P. guajava, grown in tropical regions for their edible fruit
- the fruit of such a tree, having yellow skin and pink pulp: used to make jellies, jams, etc
