Definition: A harmful substance found in tobacco that can cause addiction and is also used as a pesticide.

Example: Many people struggle to quit smoking because of the nicotine in cigarettes.

Definition: Relating to a specific type of chemical compound that is similar to nicotine and affects nerve fibers, often influencing muscle activity.

Example: The study focused on the nicotinic receptors in the brain and their role in addiction.

Definition: A type of medication that helps relax blood vessels and improve blood flow, often used to treat chest pain and high blood pressure.

Example: The doctor prescribed nifedipine to help manage my high blood pressure.

Definition: A small projection on the surface of the breast that can produce milk in females and is also found in males; it can also refer to similar shapes or objects in other contexts.

Example: The baby latched onto the mother's nipple to feed.

Definition: Describing something that has a nipple or nipples.

Example: The baby was feeding from the nippled bottle.

Definition: A type of organic compound that contains nitrogen and is known to be harmful, often found in certain foods and products, and can cause cancer in laboratory tests.

Example: Nitrosamines can be formed in some processed meats during cooking.

Definition: A harmless substance that causes negative effects because the person believes it will be harmful, even though it has no real medicinal effect.

Example: The doctor explained that the nocebo effect can occur when patients expect side effects from a treatment that is actually harmless.

Definition: Relating to the process of sensing or responding to pain or harmful stimuli.

Example: The nociceptive response is crucial for protecting the body from injury.

Definition: A type of sensory receptor that detects harmful stimuli and sends signals to the brain, leading to the feeling of pain.

Example: When you touch something hot, nociceptors in your skin send signals to your brain to warn you of the danger.

Definition: Something that causes harm or is toxic.

Example: The chemicals in the factory were found to be nocuous to the environment.