umbra

n. 阴影, 本影, 暗影 [化] 本影

发音

其它 /ˈʌmbɹə/

词形变化

umbrae umbræ umbras 复数 umbras umbrae 复数 umbræ 复数

释义与例句

n.
  1. 1.

    The fully shaded inner region of a shadow cast by an opaque object.

  2. 2.

    The fully shaded inner region of a shadow cast by an opaque object.

    The area on the earth or moon experiencing the total phase of an eclipse.

    天文
  3. 3.

    The central region of a sunspot.

    天文
  4. 4.

    A shadow.

    文学
  5. 5.

    An uninvited guest brought along by one who was invited.

    古体
  6. 6.

    One of the family Umbridae of mudminnows.

  7. 7.

    One of genus Umbrina of drums (family Sciaenidae).

  8. 8.

    An element of the umbral calculus.

    数学

词汇关系

名词

上位词 1

shadow

相关短语

umbra recta umbra versa Bernoulli umbra

词源

Borrowed from Latin umbra (“shadow”). Doublet of umber.

来源：wiktionary