Apophysis may refer to: A tubercle (bone) Apophysis (spider), an outgrowth of the exoskeleton in spiders and other arachnids In botany, an outgrowth or enlargement of an organ such as a plant stem Apophysis (software), a fractal flame generating program for Microsoft Windows Apophysis (geology), a discordant offshoot from another body, such as a sill, dike, or pluton See also Apophasis Apophis (disambiguation)