On the other hand, E-beam sterilization can be harmful to products containing batteries or electronic components. It can also degrade rubber and polypropylene, but these materials now come in grades that are E-beam compatible, Wilson notes.
A trajectory is the path of an object through space, or the path of life that a person chooses. The prefix tra- is short for trans-, which means across (think transport and transit) and the ject comes from jacere, which means throw and is also the root of the word jet.
trajectories. 1  1 : the curve that a body (such as a planet or comet in its orbit or a rocket) describes in space. 2  2 : a path, progression, or line of development resembling a physical trajectory an upward career trajectory.