Nanometer, a unit of length equal to one-billionth of a meter.

Nicotinamide mononucleotide, a compound involved in cellular energy production and a precursor to NAD+.

Nuclear magnetic resonance, a technique used to study the structure and dynamics of molecules, particularly in chemical and biological research.

A sensory receptor that responds to damaging or potentially damaging stimuli by sending pain signals to the brain.

Active during the night, typically referring to animals that are most active in the dark hours of the day.

Points where two or more lines or pathways intersect, or specific areas of growth in plants or branches of nerves in biology.

A small, rounded mass of tissue or cells, often referring to growths or swellings found in various organisms.

A crystalline compound that contains nine molecules of water in its structure.

A condition in which the size of red blood cells is normal in a blood sample.

Infections or diseases acquired in a hospital or healthcare setting, also known as hospital-acquired infections (HAIs).