Exam: GRE (Verbal)

Definition: A statement or proposition that follows logically from a previously proven statement, often used in mathematics to indicate a related result or condition.

Example: The theorem has a useful porism that helps solve related problems.

Definition: The quality or state of having small holes or spaces in a material, allowing liquids or gases to pass through.

Example: The porosity of the rock allows water to seep through it easily.

Definition: Able to allow liquids or gases to pass through because it has small holes or spaces.

Example: The sponge is porous, so it can soak up water easily.

Definition: The state or quality of having small holes or spaces that allow air or liquid to pass through.

Example: The porousness of the sponge makes it very absorbent.

Definition: A group of disorders that affect the body's ability to produce heme, leading to a buildup of porphyrins in the blood and urine, often inherited from parents.

Example: People with porphyria may experience symptoms like abdominal pain and sensitivity to sunlight.

Definition: A type of organic compound made up of four connected rings, which plays an important role in biological processes like carrying oxygen in blood and photosynthesis in plants.

Example: Chlorophyll is a well-known porphyrin that helps plants absorb sunlight for photosynthesis.

Definition: Describing a type of rock that has large crystals embedded in a finer-grained background.

Example: The geologist examined the porphyritic rock to understand its formation process.

Definition: The quality or ability of something to be easily carried or moved from one place to another.

Example: The portability of the new laptop makes it ideal for travel.

Definition: Relating to a point of entry, especially in the context of blood vessels entering an organ, like the liver.

Example: The doctor explained the importance of the portal system in the human body.

Definition: A large door or entrance, often grand in appearance, that allows access to a place or a website that serves as a starting point for accessing other sites.

Example: The ancient castle had a magnificent portal that welcomed visitors.

Definition: To indicate or predict something that will happen in the future, often something bad or significant.

Example: The darkening skies seemed to portend a heavy rainstorm later in the day.