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parabolic adj. [pair-uh-BAH-lik]

比喻的，寓言的；抛物线的

Definition

1: expressed by or being a parable: allegorical

2: of, having the form of, or relating to a curve formed by the intersection of a cone and a plane parallel to an element of the cone

Did You Know?

The two distinct meanings of parabolic trace back to the development of Late Latin and New Latin. Late Latin is the Latin language used by writers in the third to sixth centuries. In that language, the word for “parable” was parabola — hence, the “parable” sense of parabolic. New Latin refers to the Latin used since the end of the medieval period, especially in regard to scientific description and classification. In New Latin, parabola names the same geometrical curve as it does in English. Both meanings of parabola were drawn from the Greek word for “comparison”: parabolē.

词源词根演化：parabolē (“comparison”) —> parabola (n.) / parabolic (adj.)

parabolic的两个截然不同的意思可以追溯到Late Latin（后期拉丁语）与New Latin（近代拉丁语）的发展。Late Latin是大约3世纪到6世纪的书写语言。在那时，parable寓言对应的单词是parabola — 因此，寓言的，比喻的对应的单词也就是parabolic。New Latin指的是中世纪之后使用的拉丁语，尤其是用于科学描述与类别。在New Latin中，parabola用于命名抛物线这种几何曲线，英语单词的拼写与之相同。parabola的这两个含义都来自于希腊词汇parabolē，意思是“比较”。

Examples

• The batter launched the ball into a towering parabolic arc that carried it well over the center field fence.
  击球手将球击出了一个高高的抛物线，正好越过了中场fence。【猜测可能在讲垒球比赛吧】
  注：batter：击球队员；towering：高耸的，激烈的，杰出的；
• “In 1937, [radio astronomer Grote] Reber built the world’s first parabolic radio telescope in his backyard. The Reber Telescope was moved to the National Radio Observatory at Green Bank in the 1960s and was designated a National Historic Landmark in 1989.”
  — Princeton Times (West Virginia), 21 Dec. 2018
  在1937年，射电天文学家Grote Reber在自家后院建造了实际上第一台抛物线形射电望远镜。Reber的望远镜在1960年代被移到了位于Green Bank的国家射电天文台，在1989年被认定为国家历史地标。

Reference

Parabola的形成

parabola：抛物线；hyperbola：双曲线；ellipse：椭圆

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