Definition: A type of highly flammable material made from nitrocellulose, often used to create plastics, coatings, and other products.

Example: The artist used pyroxylin to create a durable finish on the sculpture.

Definition: A brownish-bronze mineral made of iron and sulfur, known for its weak magnetic properties and used as an iron ore and in making sulfuric acid.

Example: Pyrrhotite is often found in igneous rocks and can be an important source of iron.

Definition: A chemical compound that is a five-membered ring with four carbon atoms and one nitrogen atom, often used in organic chemistry.

Example: Pyrrol is an important building block in the synthesis of various organic compounds.

Definition: A type of chemical compound that has a ring made of four carbon atoms and one nitrogen atom, often found in important biological substances.

Example: Pyrrole is used in the synthesis of various dyes and pharmaceuticals.

Definition: A chemical compound that is a salt or an ester derived from pyruvic acid, often involved in metabolic processes.

Example: Pyruvate plays a crucial role in the energy production of cells.

Definition: A type of large, nonvenomous snake that is known for coiling around its prey to suffocate it. These snakes are found mainly in regions like Asia, Africa, and Australia and can grow to be very long, sometimes over 20 feet.

Example: The python slithered silently through the grass, searching for its next meal.

Definition: A type of fruit that opens at the top to release its seeds, similar to a small container or box.

Example: The pyxis of the plant opened to let the seeds fall to the ground.

Definition: A system of underground tunnels that transport water from a source, often in hilly areas, to the surface for use in irrigation or drinking.

Example: The ancient qanat system allowed the villagers to access water from deep underground.

Definition: Relating to something that is made up of four identical parts or copies.

Example: The report was submitted in quadruplicate to ensure everyone received a copy.

Definition: A copy or item that is one of four identical parts or versions.

Example: The report was submitted in quadruplicate to ensure everyone received a copy.

Definition: To make four copies of something or to increase something to four times its original amount.

Example: The printer can quadruplicate the document in just a few minutes.

Definition: The act of multiplying something by four.

Example: The quadruplication of the data helped improve the accuracy of the results.