Meaning ofsubdomainsin English

Noun

1. parts of a larger domain; smaller spheres
   The company has several subdomains that specialize in different areas of technology.
2. a domain within a larger category
   Researchers identified subdomains within the larger category of environmental science.
3. domain names with added sub-parts (e.g. sub.example.com)
   The website has several subdomains for different languages.