Exam: GRE (Verbal)

Definition: The condition of having two opposing or contrasting aspects, often used in psychology to describe a mental health disorder characterized by extreme mood swings.

Example: Her diagnosis of bipolarity explained the drastic changes in her mood and energy levels.

Definition: Having a shape that consists of two pyramids joined at their bases.

Example: The crystal had a bipyramidal shape, making it look unique among the other stones.

Definition: Relating to the fourth degree, especially in mathematics, where it refers to equations or expressions that involve the fourth power of a variable.

Example: The biquadratic equation can be solved using various algebraic methods.

Definition: A type of algebraic equation that has a degree of four, meaning the highest exponent of the variable is four.

Example: The mathematician solved the biquadratic to find the roots of the equation.

Definition: A type of molecule that has two parts, each with an unpaired electron, making it reactive.

Example: The chemist studied the properties of a biradical to understand its reactivity.

Definition: Having two branches or parts, often used to describe certain structures in biology, such as the limbs of some arthropods.

Example: The biramous appendages of the crab help it swim efficiently in the water.

Definition: The phenomenon where light is split into two different rays when it passes through certain materials that have different properties in different directions.

Example: Birefringence can be observed in crystals like calcite, where light behaves differently depending on the direction it travels.

Definition: Relating to a property of certain materials that have different refractive indices for light polarized in different directions, causing double refraction.

Example: The birefringent crystal split the light into two beams, creating a beautiful effect.

Definition: The number of live births in a specific area or community over a certain period, usually expressed as the number of births per 1,000 people each year.

Example: The birthrate in the country has decreased over the last decade.

Definition: To divide something into two equal parts.

Example: The line will bisect the angle perfectly.

Definition: To cut or divide something into two equal parts.

Example: The teacher asked the students to bisect the angle using a protractor.

Definition: Divided into two equal parts or sections.

Example: The bisected cake was easy to share among the guests.

Definition: To divide something into two equal parts.

Example: The line bisected the circle perfectly in half.