Definition: A type of dark-colored mineral that is a form of mica, commonly found in certain types of rocks and made up of silicate compounds containing iron, magnesium, potassium, and aluminum.

Example: Geologists often study biotite to understand the formation of igneous rocks.

Definition: Relating to a specific biotype, which is a group of organisms with similar characteristics or genetic makeup.

Example: The researchers studied the biotypic variations in the plant species to understand their adaptability.

Definition: Relating to or derived from two separate eggs, resulting in non-identical or fraternal offspring.

Example: The twins were biovular, meaning they developed from two different eggs.

Definition: The state or condition of walking on two legs.

Example: Humans are known for their bipedality, which allows them to walk upright.

Definition: A clear, colorless solid made of two connected phenyl groups, often used in heat transfer and chemical processes.

Example: Biphenyl is commonly used in the production of certain pesticides and as a heat-transfer fluid.

Definition: A type of aircraft that has two sets of wings stacked one above the other.

Example: The biplane flew gracefully through the sky, showcasing its unique design.

Definition: A support with two legs used to hold up an instrument or a weapon.

Example: The photographer set up his camera on a bipod for better stability.

Definition: A type of rocket fuel made from two different substances that are combined in a combustion chamber to produce thrust.

Example: The spacecraft used a bipropellant system to achieve higher efficiency during its launch.

Definition: A three-dimensional shape made up of two pyramids that are joined at their bases, forming a symmetrical figure.

Example: The scientist studied the properties of a bipyramid in her geometry class.

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.