Examlex
Stimulants are
Orbiting
The act of one object moving around another in a path called an orbit, due to gravitational forces.
Nucleus
The membrane-bound organelle found in eukaryotic cells that contains most of the cell's genetic material.
Electrons
Subatomic particles with a negative charge, orbiting the nucleus of an atom.
PET Scan
A medical imaging technique that helps reveal how tissues and organs are functioning by using a radioactive substance called a tracer.
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