A supercomputer is a computer that is much faster and more powerful than regular computers. They are usually used for research, science, and engineering.
A microbe is a tiny organism that is too small to see with the naked eye. There are thousands of different types of microorganisms, and they are responsible for a lot of the world's problems.
Muscled means strong and muscular. When you see a person who is muscled, you can usually tell that they work out a lot.
Phages are viruses that attack other viruses. They are very important in the world of biology, because they help to control the population of viruses.
Bacteriophages are viruses that attack bacteria. They are a very important part of the health of a ecosystem, because they help to reduce the number of bacteria in a system.
Retroviruses are viruses that are older than the ones that are currently in circulation. They are often found in animals, and they can cause diseases in humans.
Unachievable means impossible to achieve or achieve. When you say that something is unachievable, you are saying that it is impossible for the person or thing to achieve.
Doable means that something is possible and reasonable. It's usually used in a negative sense to describe something that is not very likely to happen.