Exam: TOEFL

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.

Definition: A chain of amino acids that forms part of a protein, usually consisting of 10 to 100 amino acids.

Example: Insulin is a type of polypeptide that helps regulate blood sugar levels.

Definition: A condition where a person has an excessive desire to eat or an unusually high appetite.

Example: After his illness, he experienced polyphagia and felt hungry all the time.

Definition: The practice of using several different medications at the same time, often to treat multiple health issues, especially in older adults.

Example: Polypharmacy can lead to complications if not managed carefully by healthcare providers.

Definition: Describing something that has more than one phase or stage occurring at the same time or in succession.

Example: The polyphasic sleep schedule allows for multiple short naps throughout the day instead of one long sleep at night.

Definition: A type of organic compound found in plants that has multiple phenol groups and is known for its antioxidant properties.

Example: Polyphenols are often found in fruits, vegetables, and tea, contributing to their health benefits.

Definition: Relating to a group of chemical compounds known as polyphenols, which are found in plants and have antioxidant properties.

Example: Green tea is rich in polyphenolic compounds that may benefit health.

Definition: A type of chemical compound that consists of multiple phenol units, often found in plants and known for their antioxidant properties.

Example: Polyphenolic compounds are commonly found in fruits, vegetables, and tea, contributing to their health benefits.

Definition: A character or group of characters that can represent more than one sound in a language, like certain letters in English that can be pronounced in different ways.

Example: The letter 'a' is a polyphone because it can sound different in words like 'cat' and 'cake'.

Definition: Relating to or having multiple sounds or voices at the same time, especially in music where different melodies are played together.

Example: The choir performed a beautiful polyphonic piece that showcased various vocal harmonies.