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subfield

subfield

6.7
A set of numbers that follows the same addition and multiplication rules as a larger set
  • noun
  • /ˈsʌbˌfiːld/
  • Specialized
translation icon : subcampo
  • Researchers in the subfield of topology explore properties of space preserved under continuous transformations.

Examples

  • The subfield of mathematical logic focuses on applying formal logic to mathematics and its foundations.

  • So there's a whole subfield that deals with estimating or figuring out how quickly different Markov chains mix.

  • In algebra, the study of subfields, such as elliptic curves, has many applications in number theory.

Surface Forms

subfield singular
subfields plural

Morphology

subfield = field (transparent) = sub + field

For someone who knows the mathematical sense of 'field', the meaning 'smaller field contained within a larger one' is predictable.

Etymology

Subfield comes from sub- meaning 'under' and field meaning 'area' or 'system'. In math, imagine the big set of numbers as a field and a subfield as a smaller set inside it that still follows the same rules for adding and multiplying, so it really 'behaves' like the larger field.