~ Post by Elsa noun: reflection 1. the throwing back by a body or surface of light, heat, or sound without absorbing it. "the reflection of light" an amount of light, heat, or sound that is reflected by a body or surface. "the reflections from the streetlights gave us just enough light" an image seen in a mirror or shiny surface. "Marianne surveyed her reflection in the mirror" something that is a consequence of or arises from something else. "a healthy skin is a reflection of good health in general" a thing bringing discredit to someone or something. "it was a sad reflection on society that because of his affliction he was picked on" 2. serious thought or consideration "he doesn't get much time for reflection" an idea about something, especially one that is written down or expressed. "reflections on human destiny and art" 3. MATHEMATICS the conceptual operation of inverting a syst...