A "laser beam" refers to a narrow and focused light that travels in a straight line. It is produced by a laser device and can be used for various applications, such as cutting, medical treatments, or even in toys. Full definition
What they call «optical molasses» slows atoms to a crawl by focusing three pairs of laser beams on a small volume of space that also contains a magnetic field. (newscientist.com)
We're hoping to avoid surgery on either leg, so with laser beam intact, onward and upward we go. (fidoseofreality.com)
We've developed new imaging technologies for the retina based on scanning a low - power laser beam on the eye. (glaucoma.org)