Esophageal cancer describes the disease where cells that line the esophagus change or mutate and become malignant. These cells grow out of control and form a mass or tumor. There are two main types of esophageal cancer:
Trajectory. A trajectory is the path that a moving object follows through space as a function of time. The object might be a projectile or a satellite, for example. It thus includes the meaning of orbitâthe path of a planet, an asteroid or a comet as it travels around a central mass.
the movement of an object along a three-dimensional path, or of a projectile within an individual's body. 2. the course of a disease. trajectory. The path of a projectile through space, resulting from the forces acting on itâe.g., thrust, wind and gravity. The solution to a dynamical system in forward and backward time, passing through a specified initial condition. The representation of the behaviour of a system in a state-space over a short period of time; a trajectory is one cycle on a phase-plane plot.