Definition: A man-made chemical element that is radioactive and has the atomic number 98. It is created by bombarding curium with helium isotopes and is known for emitting alpha particles.

Example: Californium is used in some nuclear reactors and for neutron activation analysis.

Definition: A tool used to measure the distance between two opposite sides of an object, often with two adjustable arms or legs.

Example: The engineer used a caliper to measure the thickness of the metal sheet.

Definition: To measure the distance between two opposite sides of an object using a tool that has two arms or jaws.

Example: The technician will caliper the thickness of the metal sheet to ensure it meets specifications.

Definition: A type of cup or chalice, often used in religious ceremonies.

Example: The priest held the calix during the communion service.

Definition: A tool used to measure the distance between two opposite sides of an object, often used in engineering and woodworking.

Example: The engineer used a calliper to ensure the parts fit together perfectly.

Definition: A type of carbohydrate that is often found in plants, particularly in the areas where sieve elements connect.

Example: Callose is important for the plant's ability to respond to injury and stress.

Definition: A thickened and hardened area of skin, often caused by repeated friction or pressure.

Example: The gardener developed a callosity on his hands from years of working with tools.

Definition: To develop a thickened and hardened area of skin, often due to repeated friction or pressure.

Example: After weeks of playing the guitar, he began to callus on his fingertips.

Definition: A thick, hard area of skin that forms as a result of pressure or friction, often found on hands or feet.

Example: After weeks of working with the tools, he developed a callus on his palm.

Definition: A protein that binds calcium and helps control various cellular processes, including muscle contraction, by influencing the activity of certain enzymes that depend on calcium.

Example: Calmodulin plays a crucial role in muscle contraction by activating enzymes that respond to calcium levels.

Definition: A white or colorless compound made of mercury and chlorine, used in medicine and as an insecticide.

Example: The doctor prescribed calomel as a treatment for the patient's condition.

Definition: A device used to measure the amount of heat produced or absorbed during a chemical reaction or physical change.

Example: The scientist used a calorimeter to determine the heat of the reaction.