reflex

IPA: rˈifɫɛks

An automatic response to a simple stimulus which does not require mental processing.
(linguistics) The descendant of an earlier language element, such as a word or phoneme, in a daughter language.
(linguistics, rare) The ancestor word corresponding to a descendant.
The descendant of anything from an earlier time, such as a cultural myth.
(chiefly photography) Reflection or an image produced by reflection. The light reflected from an illuminated surface to one in shade.

Bent, turned back or reflected.
Produced automatically by a stimulus.
(geometry, of an angle) Having greater than 180 degrees but less than 360 degrees.
(painting) Illuminated by light reflected from another part of the same picture.

Examples of "reflex" in Sentences

Thank you click on any link with a Japanese girl in the title reflex
Post imperial reflex is certainly part of the problem but there's more.
It looks horrible and it's a travasty to scifi ... and the gag reflex is winning out so I'm going to leave now and go read Ursula Vernon's Digger.
He lays it through her and in her, though knowing no more what he is doing than we know when we digest, but still doing it as by what we call a reflex action.
If the arm or the leg of a sleeper be stroked or touched, or a cold breath of air blows thereon, it will be withdrawn, and such withdrawal is what we call a reflex action.
I would expect the government to fight a lawsuit trying to prevent something like this, just as I would expect a leg to bounce up when its patellar reflex is hit with a tendon hammer.
We have asserted, and also proven experimentally, that normally this reflex is always of a specific nature, i.e. that the endings of the centripetal nerves receiving the stimulation are different, each bringing about a reflex only when there are very defined external stimuli.