plural of reflecting circle

An astronomical instrument for measuring angles, like the sextant or Hadley's quadrant, by the reflection of light from two plane mirrors which it carries, and differing from the sextant chiefly in having an entire circle.

simple past tense and past participle of reflect upon

Third-person singular simple present indicative form of reflect upon

present participle of reflect upon

A water feature consisting of a shallow pool of water with a reflective surface, undisturbed by fountain jets.

plural of reflecting pool

(astronomy) A nebula that consists of dust which reflects starlight and appears blue in photographs.

plural of reflecting microscope

A telescope which produces a magnified image by reflecting light through a series of mirrors housed in a tube, using a large curved mirror to gather the light and one or more additional mirrors to transmit the light to an eyepiece.