What is the difference between achondroplasia and skeletal dysplasia (dwarfism)?

What is the difference between achondroplasia and skeletal dysplasia (dwarfism)?

Achondroplasia is the most common form of skeletal dysplasia, which is the umbrella term used to identify hundreds of conditions that affect the growth of bones and cartilage. Achondroplasia specifically targets bone growth in your arms and legs.