Exam: GRE (Verbal)

Definition: Relating to a type of star-shaped cell in the brain and spinal cord that supports neurons and maintains the blood-brain barrier.

Example: The astrocytic cells play a crucial role in the health of the nervous system.

Definition: A historical tool used to measure the position of stars and planets in the sky, helping people understand astronomy and navigation.

Example: The ancient sailors relied on the astrolabe to guide their ships across the ocean.

Definition: Related to the measurement of the positions and movements of stars and other celestial bodies.

Example: The astrometric data collected by the telescope helped scientists understand the star's movement.

Definition: The scientific study that involves measuring the positions and movements of stars and other celestial objects.

Example: Astrometry is essential for understanding the dynamics of our solar system.

Definition: A person who is trained to travel into space and work on a spacecraft.

Example: The astronaut floated in zero gravity while conducting experiments.

Definition: Relating to the science and technology of space travel and exploration.

Example: The astronautic achievements of the last decade have expanded our understanding of the universe.

Definition: Relating to the science and technology of space travel and exploration.

Example: The astronautical engineering program at the university focuses on spacecraft design.

Definition: In a manner related to space travel or the activities of astronauts.

Example: The mission was planned astronautically to ensure the safety of the crew.

Definition: The study and technology related to traveling in space.

Example: He is studying astronautics to become a space engineer.

Definition: A person who studies stars, planets, and other celestial objects in space.

Example: The astronomer discovered a new planet in our solar system.