alethoscope

词形变化

alethoscopes 复数 alethoscopes

释义与例句

n.
  1. 1.

    An instrument, invented in the 1860s, for viewing magnified pictures by means of a single lens inside a box. By varying the intensity of the light, the same picture can be shown as "daytime" or "nighttime".

    历史

词源

From Ancient Greek ἀλήθεια (alḗtheia, “truth”) + -scope, equivalent to aletho- + -scope.

来源：wiktionary