angle of reflection
— Noun
– English
~ the angle between a reflected ray and a line perpendicular to the reflecting surface at the point of incidence
acquired reflex
— Noun
– English
~ an acquired response that is under the control of (conditional on the occurrence of) a stimulus
accommodation reflex
— Noun
– English
~ reflex changes in the eyes that enable an object to be focused on the retina
angle of refraction
— Noun
– English
~ the angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction
aqua regia
— Noun
– English
~ a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)
ancien regime
— Noun
– English
~ a political and social system that no longer governs (especially the system that existed in France before the French Revolution)
authoritarian regime
— Noun
– English
~ a government that concentrates political power in an authority not responsible to the people
accumulator register
— Noun
– English
~ (computer science) a register that has a built-in adder that adds an input number to the contents of the register
Alaska rein orchid
— Noun
– English
~ similar to coastal rein orchid but with smaller flowers; Alaska to Baja California and east to the Dakotas and Colorado