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二元 (èr yuán) — (mathematics) duality; two-place (as in 二元关系 'binary relation'); (chemistry) binary (as in 二元化合物 'binary compound'); (linguistics) bivalence (as in 二元性 'bivalence')

Definition

A technical prefix meaning 'two-element' or 'two-place', used in math, chemistry, and linguistics. Combines with nouns like 关系, 化合物, or 性 to form terms — never used alone in everyday speech.

noun
(mathematics) dualitytwo-place (as in 二元关系 'binary relation')(chemistry) binary (as in 二元化合物 'binary compound')(linguistics) bivalence (as in 二元性 'bivalence')

Examples

  • 二元。
    Zhè ge fāng chéng shì èr yuán yí cì fāng chéng.
    This equation is a linear equation in two variables.
  • 二元。
    Shuǐ shì yì zhǒng èr yuán huà hé wù.
    Water is a binary compound.
  • 二元。
    Zhè ge luó ji xì tǒng jù yǒu èr yuán xìng.
    This logical system has bivalence.
Appears in
Math

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