Wiktionary
subfield
n. 1 A smaller, more specialized area of study or occupation within a larger one 2 (context algebra English) A subring of a field, containing the multiplicative identity and closed under inversion.
Wikipedia
Subfield
Subfield may refer to:
- An area of research and study within an academic discipline.
- A field contained in another field, used in field theory (mathematics)
- A division in heraldry.
- A division in MARC standards.
Usage examples of "subfield".
This is much rarer in English, where the jargons and registers of fields and subfields are often meaningless even to other native speakers of English.