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单词 paraboloids
释义

parabola /pə-rabˈə-lə/

noun (pl parabˈolas)
  1. A curve, one of the conic sections, the intersection of a cone and a plane parallel to its side, or the locus of a point equidistant from a fixed point (the focus) and a fixed straight line (the directrix), and having the equation with vertex as origin y2=4ax
  2. Generalized to include any curve whose equation is yn=pxm
ORIGIN: Ety as for parable

parabˈole /-lē/ noun (rhetoric)

A comparison, simile, or metaphor

parabolˈic /par-ə-bolˈik/ or parabolˈical adjective

  1. Of or like a parable or a parabola or a parabole
  2. Expressed by a parable
  3. Belonging to, or of the form of, a parabola

parabolˈically adverb

parabˈolist noun

parabˈolize or parabˈolise transitive verb

  1. To set forth by parable
  2. To treat as a parable
  3. To shape like a parabola or paraboloid

parabˈoloid noun

A surface or solid generated by the rotation of a parabola about its axis

parabˈoloid or paraboloidˈal adjective

parabolic geometry noun

Euclidean geometry

parabolic velocity noun (astronomy)

The velocity which a body at a given point would require to describe a parabola about the centre of attraction

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更新时间:2024/11/10 22:04:29