sublanguage
/ˈsʌbˌlæŋɡwɪdʒ/
noun
- A specialized or limited form of a language used by a particular group, profession, or for a specific purpose.
- In legal documents, the sublanguage includes many Latin phrases that confuse non-lawyers.
- The programming sublanguage used by database administrators is different from everyday English.
- Medical professionals use a sublanguage full of terms like 'myocardial infarction' instead of 'heart attack'.