Definition: A tube-shaped device that creates beautiful, changing patterns of colors and shapes when you look through it, often made with mirrors and colored glass pieces inside.

Example: The children were fascinated by the colorful patterns in the kaleidoscope.

Definition: A chemical element with the symbol K, known for being a soft, silvery-white metal that is highly reactive and is essential for plant and animal life.

Example: Kalium is used in fertilizers to help plants grow.

Definition: A type of peptide that helps widen blood vessels and is involved in regulating blood flow and water balance in the body.

Example: Kallidin plays a role in kidney function by promoting the dilation of blood vessels.

Definition: A type of enzyme that helps break down proteins and is involved in regulating blood pressure by releasing certain substances from blood plasma.

Example: Kallikrein plays a crucial role in the body's ability to control blood pressure and inflammation.

Definition: A type of mineral found in meteorites that is mainly made of iron and nickel.

Example: Scientists discovered a rare sample of kamacite in the meteorite they studied.

Definition: A fine white clay that is used in making ceramics, as a filler in products like paper and textiles, and in medicine to help treat diarrhea.

Example: The artist used kaolin to create beautiful porcelain pottery.

Definition: A type of clay that is used in making porcelain and ceramics, known for its fine texture and white color.

Example: The artist used kaoline to create delicate porcelain sculptures.

Definition: A type of mineral that is mainly made of aluminum silicate and is the main component of kaolin, often used in ceramics and paper production.

Example: Kaolinite is commonly used in the production of porcelain and ceramics.

Definition: A type of unstable particle that comes in charged and neutral forms, significantly heavier than an electron, and is created during high-energy collisions of particles.

Example: The physicists studied the behavior of kaons in the particle accelerator.

Definition: Relating to the process of cell division where the nucleus divides into two nuclei.

Example: The karyokinetic process is essential for cell reproduction.