Exam: GRE (Verbal)

Definition: Relating to the inner open space of a tubular structure, such as a blood vessel or a part of the body.

Example: The doctor explained how the luminal area of the artery can become narrowed due to plaque buildup.

Definition: A type of medication used to calm or sedate a person, often used in medical settings.

Example: The doctor prescribed a luminal to help the patient relax before the procedure.

Definition: The brightness or amount of light that comes from a surface or source.

Example: The luminance of the screen was adjusted to reduce glare.

Definition: A person who is well-known and respected in a particular area, often inspiring others with their achievements.

Example: She is considered a luminary in the field of science, inspiring many young researchers.

Definition: To give off light without heat, often in a way that is visible in the dark.

Example: The glow-in-the-dark stars on the ceiling luminesce at night, creating a magical atmosphere.

Definition: The process of producing light without heat, often caused by chemical reactions or other changes in matter.

Example: The glow of the fireflies is a beautiful example of luminescence in nature.

Definition: Able to produce or emit light without heat, often seen in certain materials or organisms.

Example: The luminescent jellyfish glowed in the dark ocean waters.

Definition: Relating to the generation or transmission of light.

Example: The luminiferous waves traveled through the vacuum of space.

Definition: The quality or state of being bright or shining, often used to describe light or brightness in a scientific context.

Example: The luminosity of the star was measured to determine its distance from Earth.

Definition: Something that gives off or reflects light, making it bright and easy to see. It can also refer to ideas or writing that are clear and inspiring.

Example: The stars looked luminous against the dark night sky.

Definition: The state of being bright or shining, especially in a way that produces light.

Example: The luminousness of the stars made the night sky beautiful.