Definition: A medical condition that involves inflammation of multiple peripheral nerves at the same time, often leading to pain, weakness, or numbness in the affected areas.

Example: The patient was diagnosed with polyneuritis after experiencing weakness in both legs and hands.

Definition: Relating to a mathematical expression that consists of multiple terms, typically involving variables raised to whole number powers.

Example: In algebra, a polynomial can be used to represent various functions and equations.

Definition: A type of mathematical expression that includes one or more terms, where each term has a constant multiplied by variables raised to whole number powers.

Example: The equation x^2 - 4x + 4 is a polynomial that can be factored into (x - 2)(x - 2).

Definition: Describing something that has more than one nucleus, often used in chemistry to refer to compounds with multiple cyclic structures.

Example: The polynuclear compound exhibited unique chemical properties due to its multiple nuclei.

Definition: A large molecule made up of many smaller units called nucleotides, which are the building blocks of DNA and RNA.

Example: Polynucleotides play a crucial role in genetic information storage and transfer.

Definition: A section of open water that is surrounded by ice in the ocean or a lake.

Example: The researchers observed a polynya where seals were swimming freely.

Definition: A type of organic compound that contains three or more hydroxyl groups, which are chemical groups consisting of an oxygen atom bonded to a hydrogen atom.

Example: Polyols are often used in the production of plastics and food products.

Definition: A type of plastic made from the polymerization of olefins, commonly used in packaging and other products.

Example: Polyolefin materials are widely used in the production of plastic bags and containers.

Definition: A type of virus that has DNA and is linked to the development of tumors in rodents.

Example: Researchers are studying the effects of polyoma on rodent health.

Definition: A type of virus that can cause tumors in certain animals, particularly in young ones.

Example: Researchers are studying polyomavirus to understand its effects on animal health.

Definition: A small growth or structure that can be found in certain animals or as a noncancerous tumor in the lining of organs like the nose or intestines.

Example: The doctor found a polyp during the examination of the patient's colon.