Exam: IELTS

Definition: In a way that shows strong interest or enthusiasm.

Example: She listened keenly to the speaker, eager to learn more.

Definition: The quality of being eager or enthusiastic about something; a strong interest or desire to learn or do something.

Example: Her keenness for learning new languages impressed her teachers.

Definition: To continue to do something or to remain in a certain state or condition.

Example: If you want to succeed, you need to keep trying.

Definition: A place where someone is kept safe or protected, often referring to a stronghold or a jail.

Example: The old castle's keep was built to protect the inhabitants from invaders.

Definition: To hold or maintain something in a particular state or condition, or to continue doing something over time.

Example: She decided to keep her old toys for sentimental reasons.

Definition: A thick, raised scar that forms when the body produces too much fibrous tissue during healing after an injury or surgery.

Example: After her surgery, she developed a keloid on her shoulder that was larger than expected.

Definition: Relating to a temperature scale where absolute zero is 0 K, and each unit is equivalent to one degree Celsius.

Example: The temperature in the lab was measured in kelvin to ensure precision.

Definition: A unit of measurement for temperature that starts at absolute zero, where each degree is equal to one kelvin. It is used in science and is part of the metric system.

Example: The temperature of the water was measured at 300 kelvin.

Definition: Well-groomed and tidy in appearance.

Example: He always looks very kempt, with his hair neatly styled and his clothes pressed.

Definition: A type of phospholipid found in biological membranes, similar to cephalin, which is involved in various cellular processes.

Example: Kephalin plays a crucial role in the structure of cell membranes.

Definition: A surgical procedure that involves removing a portion of the cornea, which is the clear front part of the eye.

Example: The doctor recommended a keratectomy to improve the patient's vision.

Definition: A strong protein that makes up hair, nails, and the outer layer of skin.

Example: Keratin is essential for the health and strength of our hair and nails.

Definition: The process where skin cells change into a tough, protective material called keratin, which is found in hair and nails.

Example: Keratinization is essential for the formation of healthy hair and nails.