Nanism, also known as dwarfism, is a medical condition characterized by a short stature. However, there are a variety of synonyms for nanism that refer to different forms of the condition. Achondroplasia is a type of nanism that affects bone growth, resulting in a short stature with a large head and short limbs. Hypopituitarism is another synonym for nanism that refers to a deficiency in growth hormone production, causing stunted growth. Likewise, primordial dwarfism is a rare form of nanism that affects both bone and organ growth, resulting in extreme short stature and proportional body size. While they may have similar characteristics, each synonym for nanism involves distinct underlying medical conditions.