Exam: IELTS

Definition: Relating to a mood disorder that causes changes in mood, including periods of feeling very happy and periods of feeling very sad, but these changes are not as extreme as those seen in bipolar disorder.

Example: Her cyclothymic tendencies made it difficult for her to maintain stable relationships.

Definition: A device that accelerates charged particles, like protons or ions, in a circular path using electric and magnetic fields.

Example: The researchers used a cyclotron to accelerate particles for their experiments.

Definition: A three-dimensional shape with two circular ends and straight sides, or an object that has this shape.

Example: The engineer designed a cylinder to hold the hydraulic fluid.

Definition: Having the shape of a cylinder, which is a solid object with circular ends and straight sides.

Example: The water tank is cylindrical, allowing it to hold a large volume of water.

Definition: Having a negative or distrustful attitude towards people and their motives, often believing that they are selfish or insincere.

Example: Her cynical view of the world made it hard for her to trust anyone.

Definition: In a way that shows distrust or disbelief in people's motives or sincerity.

Example: She cynically dismissed his apology as insincere.

Definition: A way of thinking that shows distrust or disbelief in the motives of others, often believing that people are motivated by self-interest.

Example: His cynicism made it hard for him to trust anyone in the organization.

Definition: A type of small, meat-eating reptile that is closely related to mammals.

Example: Cynodonts are believed to have played a significant role in the evolution of mammals.

Definition: A method of transforming a message to keep its meaning secret, often using a code or a system of symbols.

Example: The spy used a cypher to send secret messages to his team.

Definition: A closed sac in the body that can contain liquid, gas, or semi-solid material, often developing abnormally.

Example: The doctor found a cyst on the patient's kidney during the ultrasound.