Definition: A bony growth that forms on the surface of a bone or tooth.

Example: The doctor explained that the exostosis on his knee was not harmful.

Definition: A harmful substance made by a microorganism that is released into its environment and can cause illness.

Example: The scientist studied the effects of exotoxin on human cells.

Definition: Relating to a substance that helps to clear mucus from the airways, making it easier to breathe.

Example: The doctor recommended an expectorant to help relieve my cough.

Definition: A type of medicine that helps to clear mucus from the airways, making it easier to cough up.

Example: The doctor prescribed an expectorant to help relieve her cough.

Definition: To cough up and spit out material from the lungs or throat.

Example: He had to expectorate frequently due to his cold.

Definition: To cough up and spit out something from the mouth.

Example: He had to expectorate the phlegm that was bothering him.

Definition: The act of coughing up and spitting out mucus or phlegm from the throat or lungs.

Example: The doctor asked about the patient's expectoration to understand their respiratory condition.

Definition: The end of a period of time when something is no longer valid or in effect, such as a contract or a product's freshness.

Example: The expiration date on the milk indicates when it should no longer be consumed.

Definition: Relating to the process of breathing out air from the lungs.

Example: The doctor explained the importance of expiratory muscles in breathing.

Definition: To come to an end or to no longer be valid or in effect.

Example: My subscription will expire next month, so I need to renew it soon.

Definition: To breathe out or release something, often used in the context of air or gas.

Example: He took a deep breath and then expired the air slowly.

Definition: No longer valid or in effect, often because a certain period of time has passed.

Example: The coupon has expired, so I can't use it anymore.

Definition: To come to an end or to no longer be valid or effective.

Example: The coupon has expired, so I can't use it anymore.

Definition: The end of a period of time when something is no longer valid or can no longer be used, often related to contracts or agreements.

Example: The expiry date on the milk means it should not be consumed after that date.