Exam: GRE (Verbal)

Definition: A system or situation where there are multiple centers of authority, control, or culture, rather than a single dominant one.

Example: The country's polycentrism allows for diverse cultural expressions and governance.

Definition: A situation in which something is divided into more than two parts or categories.

Example: The study of the species revealed a polychotomy in their evolutionary paths.

Definition: Having or showing many different colors.

Example: The artist used polychromatic paints to create a vibrant mural.

Definition: Describing a type of mRNA that can produce more than one protein from a single transcript.

Example: In bacteria, polycistronic mRNA allows for the simultaneous expression of several genes.

Definition: Relating to or derived from multiple groups of cells that are genetically different from each other.

Example: The researchers used polyclonal antibodies to enhance the immune response in their experiments.

Definition: A material made up of many small crystals or grains, which are joined together to form a solid structure.

Example: The metal was found to be a polycrystal, consisting of numerous tiny crystals.

Definition: Made up of many small crystals that are not aligned in the same direction.

Example: The material used in the solar panels is polycrystalline, which helps improve their efficiency.

Definition: Describing a molecule that has two or more rings or cycles in its structure.

Example: Polycyclic compounds are often found in organic chemistry and can have unique properties.

Definition: Describing a condition that has many cysts or involves multiple cysts.

Example: Polycystic ovary syndrome can affect a woman's hormone levels and menstrual cycle.

Definition: A condition where there is an unusually high level of hemoglobin in the blood, which can happen due to a decrease in plasma volume or an increase in red blood cells. This can be caused by various factors, including certain diseases or disorders related to breathing or circulation.

Example: The doctor diagnosed him with polycythaemia after reviewing his blood test results.