Exam: TOEFL

Definition: A three-dimensional shape that has flat surfaces called faces, which are polygons.

Example: The architect designed a building in the shape of a polyhedron.

Definition: A type of disease that affects certain insect larvae and crustaceans, caused by specific viruses, leading to tissue breakdown and the presence of virus particles in the body fluids.

Example: The farmer noticed signs of polyhedrosis in his caterpillar population, indicating a viral infection.

Definition: A type of compound made up of repeating units that contain carbonyl groups, often produced by bacteria and fungi, and used in medicine for their antibiotic and other health-related properties.

Example: Polyketides are important in the development of new antibiotics and cancer treatments.

Definition: Relating to a person who has knowledge in many different subjects or fields.

Example: Leonardo da Vinci is often considered a polymathic genius due to his expertise in art, science, and engineering.

Definition: The ability to understand and learn about many different subjects or fields of study.

Example: Her polymathy allowed her to excel in both science and the arts.

Definition: A substance made of many small, similar units linked together, often used in plastics and other materials.

Example: The new toy is made from a flexible polymer that can bend without breaking.

Definition: A type of enzyme that helps create DNA or RNA by using an existing strand as a guide.

Example: DNA polymerase is essential for DNA replication in cells.

Definition: Relating to or made of a substance that consists of large molecules formed by the bonding of many smaller units called monomers.

Example: The new material is polymeric, making it flexible and durable.

Definition: A chemical process in which small molecules called monomers join together to form a larger molecule known as a polymer.

Example: The polymerisation of the monomers resulted in a strong and flexible material.

Definition: To undergo a chemical process in which small molecules combine to form a larger, more complex structure called a polymer.

Example: The scientists studied how the materials polymerise when exposed to heat.