词典词库拼词范例测验

category 中文

EN[ˈkæɾəˌɡɒɹi] [ˈkatɪɡ(ə)ɹi]
US
种类

    Definition of category in English Dictionary

  • 名词 (Noun)PLcategoriesSUF-ory
    1. A group, often named or numbered, to which items are assigned based on similarity or defined criteria.
      1. (mathematics) A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow, and such that arrow composition is associative.
        1. One well-known category has sets as objects and functions as arrows.
        2. Just as a monoid consists of an underlying set with a binary operation "on top of it" which is closed, associative and with an identity, a category consists of an underlying digraph with an arrow composition operation "on top of it" which is transitively closed, associative, and with an identity at each object. In fact, a category's composition operation, when restricted to a single one of its objects, turns that object's set of arrows (which would all be loops) into a monoid.
    2. 更多范例
      1. 用于句中
        • “The dating industry has come a long way since its inception, but the category remains underpenetrated.”
        • If slice category C over X has two objects (A, f) and (B, g) and a morphism h : (A, f) → (B, g), then this morphism would correspond to a like-named morphism h : A → B of C such that .
        • We also find gluthatione metabolism (assigned to the category “Others”) in a middle position, with a CV of 0.6, and it is highlighted in kidney.
    • 词类阶层 (Part-of-Speech Hierarchy)
      1. 名词
        • 可数名词
      相关连结:
      1. en categoryless
      2. en category theory
      3. en category killer
      4. en category mistake
      5. en category killers
      资料来源: 维基词典

      Meaning of category for the defined word.

      在语法上,这个单字"category"是一个名词,更具体地来说,是一个可数名词
      困难度: 级别 3
      12345678910
      容易     ➨     困难
      明确性: 级别 8
      12345678910
      明确的    ➨     多用途
      2.175