a microscope whose objective is composed of two mirrors, one convex and the other concave; it is free of chromatic aberration

To consider a weighty topic or idea.

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.

plural of reflecting circle

present participle of reflect upon

simple past tense and past participle of reflect upon

Third-person singular simple present indicative form 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

(intransitive) To engage in reflection about oneself and one's life, etc.