ejeção

Ejeção refers to the act or process of expelling or ejecting something. This term can be applied in various contexts, ranging from scientific phenomena to everyday occurrences. In astronomy, for instance, stellar ejection describes the process by which stars expel material, such as in the formation of planetary nebulae or the ejection of stars from galaxies. Explosive events in space, like supernovae, also involve the violent ejection of stellar matter.

In biology, ejection is a crucial mechanism for many organisms. The ejection of seeds by plants, for example, is a method of dispersal, ensuring the continuation of the species. In animals, ejection can be related to waste removal, such as the expulsion of feces or urine, or in defense mechanisms, like the spitting of venom by certain snakes. The ejection of gametes during reproduction is also a fundamental biological process.

The term also finds application in engineering and technology. In rocketry, ejection is the process of separating components, such as stages of a rocket or payloads. Parachute systems often employ ejection mechanisms to deploy the parachute rapidly. In the medical field, ejection fraction is a measure of the percentage of blood that is pumped out of the heart with each contraction. Thus, "ejeção" broadly describes the forceful expulsion or release of matter or entities.