n. One of several species of Psidium, a myrtaceous genus of tropical America, and especially P. Guayava, which yields a well-known and esteemed fruit, and is now cultivated and naturalized in most tropical countries.n. In Porto Rico, Inga vera, a tree of the family Mimosaceæ, used as a shade-tree in coffee-plantations. See Inga and coco-wood. 2.n. In Barbados, the ringworm-shrub, Herpetica alata.