Exam: TOEFL

Definition: A modified form of the amino acid proline that is found in collagen and is important for the structure of connective tissues in the body.

Example: Hydroxyproline is essential for maintaining the strength and stability of collagen in our skin and joints.

Definition: A medication used to treat certain types of cancer and blood disorders by reducing the production of blood cells in the bone marrow.

Example: The doctor prescribed hydroxyurea to help manage the patient's sickle cell anemia.

Definition: Relating to a group of small, mostly marine animals that are part of the class Hydrozoa, which includes jellyfish and corals.

Example: The hydrozoan species can be found in both freshwater and saltwater environments.

Definition: A type of small sea creature that belongs to a group of animals called coelenterates, which includes both solitary and colonial forms, such as hydras and jellyfish.

Example: The hydrozoan is often found in both freshwater and marine environments.

Definition: A person who practices hygiene, especially in a professional capacity, such as a dental hygienist who helps maintain oral health.

Example: The hygienist recommended that I brush my teeth twice a day.

Definition: The practices and conditions that help to keep people healthy and prevent illness, especially related to cleanliness.

Example: Good hygiene is important for preventing the spread of germs.

Definition: Related to cleanliness and health, often used to describe practices or conditions that help prevent illness.

Example: It is important to maintain a hygienic environment in the kitchen to avoid foodborne illnesses.

Definition: In a way that promotes cleanliness and prevents the spread of germs or disease.

Example: The food was prepared hygienically to ensure it was safe to eat.

Definition: The study or practice of maintaining health and cleanliness to prevent disease.

Example: Good hygienics is essential for preventing the spread of illness.

Definition: A professional who specializes in maintaining cleanliness and health, often working in dental or medical settings to promote good hygiene practices.

Example: The hygienist recommended that I brush my teeth twice a day and floss regularly.

Definition: A device that automatically measures and records changes in the amount of moisture in the air.

Example: The scientist used a hygrograph to monitor humidity levels in the greenhouse.