คำว่า ' stereoscope ' ( N )
มีความหมายในภาษาไทยว่า เครื่องมองภาพ 3 มิติ
คำนิยามในภาษาอังกฤษ (definition) :
[n.] An optical instrument for giving to pictures the appearance of solid forms, as seen in nature. It combines in one, through a bending of the rays of light, two pictures, taken for the purpose from points of view a little way apart. It is furnished with two eyeglasses, and by refraction or reflection the pictures are superimposed, so as to appear as one to the observer.