Definition: To make something tighter or narrower, often by squeezing or pulling it together.

Example: The doctor used a special technique to astringe the blood vessels during the surgery.

Definition: Having a sharp or bitter taste that can cause a tightening sensation in the mouth; also refers to something that constricts or tightens tissues.

Example: The astringent flavor of the unripe fruit made it difficult to eat.

Definition: A substance that causes the contraction of body tissues, often used to stop bleeding or reduce oiliness on the skin.

Example: The doctor applied an astringent to the wound to help stop the bleeding.

Definition: A scientist who studies the possibility of life in outer space and the conditions that might support it.

Example: The astrobiologist discovered new evidence that suggests life could exist on Mars.

Definition: The study of life in the universe, including the origins, evolution, and potential for life on other planets.

Example: Astrobiology explores the possibility of life on Mars and other celestial bodies.

Definition: A type of cell in the brain that has a star shape and supports nerve cells.

Example: Astrocytes play a crucial role in maintaining the health of neurons in the brain.

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 type of cancer that forms in the brain or spinal cord from star-shaped cells called astrocytes.

Example: The doctor diagnosed her with an astrocytoma after reviewing the MRI results.

Definition: A clear dome on the top of an aircraft that allows the navigator to see the sky for making observations of stars and other celestial bodies.

Example: The pilot used the astrodome to navigate by observing the stars during the night flight.

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: Relating to the study of the movements and positions of celestial bodies and their influence on human affairs.

Example: Many people consult astrological charts to learn about their personalities and future.