Exam: GRE (Verbal)

Definition: Relating to a part of the pelvis called the ischium, which is located at the lower back of the hip bone.

Example: The ischial tuberosity is an important landmark for various muscles in the body.

Definition: The lowest bone in each side of the pelvis, which supports the weight of the body when sitting and helps form the hip joint.

Example: The ischium is an important part of the pelvic structure in humans and many animals.

Definition: Describing a process or condition where the entropy remains constant, meaning there is no change in the level of disorder or randomness in a system.

Example: In thermodynamics, an isentropic process is often idealized to simplify calculations.

Definition: In a process where entropy remains constant, meaning there is no heat transfer or energy loss.

Example: The gas expanded isentropically, maintaining its temperature throughout the process.

Definition: A line on a weather map that connects places with the same atmospheric pressure.

Example: The meteorologist pointed out the isobars on the weather map to explain the pressure changes.

Definition: Describing a condition where the pressure remains the same throughout a system or process.

Example: In an isobaric process, the temperature of a gas can change while the pressure stays constant.

Definition: A line on a map that connects points that have the same depth of water, showing how deep the water is in different areas.

Example: The sailor used the isobath to navigate through the shallow waters safely.

Definition: A type of hydrocarbon that is a specific form of butane, commonly found in natural gas and used as a fuel.

Example: Isobutane is often used in lighters and as a refrigerant.

Definition: A type of hydrocarbon group that comes from isobutanol, often used in chemical processes.

Example: Isobutyl is commonly used in the production of various chemicals and plastics.

Definition: A type of gaseous hydrocarbon used in the production of butyl rubber and gasoline components.

Example: Isobutylene is an important chemical in the manufacturing of various rubber products.