Gua"va (?), n. [Sp. guayaba the guava fruit, guayabo the guava tree; prob. fr. the native West Indian name.] 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.

• A yellowish tropical fruit (psidium guajava) often made into jams and jellies. The guava fruit is 1¼ to 2 inches, globular or pear-shaped with thin, yellow, green, or brown skin; the meat is yellowish or pale green to pink in color.
  
• A tropical tree which produces such fruit.