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.
Freebase(0.00 / 0 votes)Rate this definition: Malus. Malus, apple, is a genus of about 30â55 species of small deciduous trees or shrubs in the family Rosaceae, including the domesticated orchard apple. The other species are generally known as crabapples, crab apples, crabs, or wild apples. The genus is native to the temperate zone of the Northern Hemisphere.