Exam: TOEFL

Definition: A type of liquid hydrocarbon that is mainly used to make another chemical called styrene.

Example: Ethylbenzene is an important ingredient in the production of polystyrene.

Definition: A colorless gas that is flammable and used in various industries, including the production of organic compounds and as a growth regulator in plants.

Example: Ethylene is commonly used in the agricultural industry to help ripen fruits.

Definition: A colorless gas that is used as a fuel and a chemical building block, often associated with welding and cutting metals.

Example: The welder used ethyne to cut through the steel beams.

Definition: Relating to the cause of a disease or condition.

Example: The doctor studied the etiologic factors that contributed to the patient's illness.

Definition: Relating to the cause or origin of a disease or condition.

Example: The doctor studied the etiological factors that contributed to the patient's illness.

Definition: In a way that relates to the cause or origin of something, especially in medicine or science.

Example: The symptoms were analyzed etiologically to determine their underlying causes.

Definition: The study of the causes or origins of diseases and disorders, or the specific cause of a particular condition.

Example: The doctor explained the etiology of the patient's illness during the consultation.

Definition: The rules and customs that guide polite behavior in social situations.

Example: It's important to follow proper etiquette when dining with others.

Definition: This word describes something that is connected to the study of the origin and history of words and their meanings.

Example: The etymological roots of the word reveal its ancient origins.

Definition: In a way that relates to the origin and history of words and their meanings.

Example: The word is etymologically derived from Latin, showing its historical roots.