You may avoid or severely limit encounters with other people-which can keep you from daily activities. You may develop physical symptoms such as a rapid heartbeat, shortness of breath, or tightness in your chest when faced with a feared social situation.
The apple tree (Malus pumila, commonly and erroneously called Malus domestica) is a deciduous tree in the rose family best known for its sweet, pomaceous fruit, the apple. It is cultivated worldwide as a fruit tree, and is the most widely grown species in the genus Malus.
Definition of apple. 1  1 : the fleshy, usually rounded red, yellow, or green edible pome fruit of a usually cultivated tree (genus Malus) of the rose family; also : an apple tree â compare crab apple. 2  2 : a fruit (such as a star apple) or other vegetative growth (such as an oak apple) suggestive of an apple.