Definition: A white crystalline substance used in photography and organic chemistry, similar to urea.

Example: Thiourea is often used in the development of photographs.

Definition: A chemical compound used to prevent fungal growth on plants and to protect seeds from disease.

Example: Farmers often use thiram to ensure their crops remain healthy and free from fungus.

Definition: A type of material that turns into a liquid when stirred or shaken, but becomes solid or thick when left still.

Example: The paint is thixotropic, making it easy to apply when mixed but thickening when it sits in the can.

Definition: A characteristic of certain substances that allows them to become more liquid when stirred or shaken, and then return to a thicker state when left still.

Example: The paint showed thixotropy, making it easy to apply but thickening when left in the can.

Definition: A type of volcanic rock that is dark in color and contains high levels of magnesium and iron, typically found on the ocean floor and believed to come from the Earth's mantle.

Example: Tholeiite is commonly found in oceanic crust and is important for understanding the composition of the Earth's mantle.

Definition: Relating to a specific type of basaltic rock that is low in potassium and high in iron and magnesium.

Example: The tholeiitic lava flow created a unique landscape in the volcanic region.

Definition: A white powdery substance made from thorium dioxide, often used in various industrial applications such as catalysts, crucibles, and optical glass.

Example: Thoria is commonly used in the production of high-temperature ceramics.

Definition: A very radioactive mineral that is a type of oxide, often found in colors like black, green, or yellow, and is related to uraninite.

Example: Thorianite is used in some types of nuclear research due to its radioactive properties.

Definition: A rare mineral that is brown to black or sometimes orange-yellow, containing thorium and silicon, and is used as an ore for thorium extraction.

Example: Thorite is often found in granitic rocks and is an important source of thorium.

Definition: A silvery-white metal that is radioactive and is used for nuclear energy and in some metal alloys. It is found in nature and has a very long half-life.

Example: Thorium is being researched as a potential alternative to uranium for nuclear power.