Definition: Describing something that contains or produces nickel, often used in reference to certain types of ores.

Example: The nickeliferous ore was mined for its valuable metal content.

Definition: A compound derived from niacin, often used in dietary supplements and skincare products for its beneficial effects on skin health and metabolism.

Example: Nicotinamide is commonly found in skincare products due to its ability to improve skin texture and tone.

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: To close and open one eye quickly, often as a signal or gesture.

Example: She nictated at him to get his attention without saying a word.

Definition: To close and open one eye quickly, often as a sign of greeting or to convey a secret message.

Example: She nictitated at him to signal that everything was fine.

Definition: The process of an early embryo attaching to the wall of the uterus after fertilization.

Example: Nidation is a crucial step in the early stages of pregnancy.

Definition: A place or structure where something begins, develops, or is located, often referring to a nest or a central point of growth.

Example: The scientist studied the nidus of infection to understand how the bacteria spread.

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 term used in mathematics to describe a quantity that becomes zero when raised to a certain power.

Example: In algebra, a nilpotent element can simplify complex equations by reducing them to zero.

Definition: A mathematical term referring to an algebraic quantity that becomes zero when raised to a certain power.

Example: In linear algebra, a nilpotent matrix is one that, when raised to a certain power, results in the zero matrix.