Exam: TOEFL

Definition: A condition where a person walks or performs other activities while asleep, often without being aware of it.

Example: During somnambulism, she walked around the house without realizing it.

Definition: A person who walks around while they are asleep, often without being aware of it.

Example: The somnambulist wandered through the house at night without realizing it.

Definition: Relating to sleepwalking or the behavior of someone who sleepwalks.

Example: The somnambulistic behavior of the child worried his parents, as he often wandered around the house at night.

Definition: Causing or inducing sleep; having a sleepy effect.

Example: The somniferous effects of the medication helped him fall asleep quickly.

Definition: A condition where a person feels very sleepy or drowsy, often making it hard to stay awake.

Example: After a long day at work, I felt a strong sense of somnolence and needed to take a nap.

Definition: Feeling very sleepy or drowsy, often to the point of being unable to stay awake.

Example: After a long day at work, I felt somnolent and could hardly keep my eyes open.

Definition: In a way that shows drowsiness or sleepiness.

Example: She spoke somnolently, struggling to keep her eyes open during the lecture.

Definition: A system that uses sound waves to find and locate objects underwater or to measure distances in water.

Example: The submarine used sonar to detect enemy ships beneath the surface.

Definition: A musical piece written for one or more instruments, often including a keyboard, usually made up of three or four different sections that change in style and speed.

Example: Beethoven's Moonlight Sonata is one of the most famous pieces in classical music.

Definition: A piece of music with words that is sung, often expressing emotions or telling a story.

Example: She sang her favorite song at the concert last night.