Exam: TOEFL

Definition: The condition of being anxious, tense, or overly concerned about things.

Example: Her uptightness made it difficult for her to relax during the vacation.

Definition: To increase or improve, especially in terms of economic conditions or situations.

Example: The economy is expected to upturn after the recent reforms.

Definition: A positive change or improvement, especially in economic conditions or business activity.

Example: The company reported an upturn in sales this quarter, indicating a recovery in the market.

Definition: To turn something so that the top side is facing upward or to change its position to be upside down.

Example: The gardener decided to upturn the soil to prepare it for planting.

Definition: A chemical compound that is a building block of RNA and plays a key role in coding genetic information.

Example: Uracil is one of the four bases found in RNA, pairing with adenine during the formation of RNA strands.

Definition: A medical condition characterized by the presence of excess urea and other nitrogenous waste products in the blood, often due to kidney failure.

Example: The patient was diagnosed with uraemia after the tests showed high levels of waste products in his blood.

Definition: Relating to a medical condition caused by the accumulation of waste products in the blood due to kidney failure.

Example: The patient was diagnosed with uraemic symptoms, indicating a serious kidney issue.

Definition: A heavy, silvery-white metal that is radioactive and toxic. It is used in nuclear energy and weapons and occurs naturally in certain minerals.

Example: Uranium is used as fuel in nuclear power plants.

Definition: A type of salt that comes from uric acid, often found in the body and can form crystals in joints.

Example: High levels of urate in the blood can lead to gout, a painful form of arthritis.

Definition: Relating to a city or the lifestyle found in cities.

Example: The urban landscape is filled with tall buildings and busy streets.

Definition: Someone who is polite, refined, and elegant in their behavior and manners.

Example: His urbane charm made him popular at social gatherings.

Definition: In a sophisticated and polished way, often showing elegance and refinement in social situations.

Example: She spoke urbanely at the dinner party, impressing everyone with her charm and poise.