Apophysis

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