An engagement ring is a ring indicating that the person wearing it is engaged to be married, especially in Western cultures.In Western countries, engagement rings are worn mostly by women, and rings can feature diamonds or other gemstones. In some other cultures men and women wear matching rings.n engagement ring is a ring indicating that the person wearing it is engaged to be married, especially in Western cultures.
Stereoscopy, sometimes called stereoscopic imaging, is a technique used to enable a three-dimensional effect, adding an illusion of depth to a flat image. Stereopsis, commonly (if imprecisely) known as depth perception, is the visual perception of differential distances among objects in oneâs line of sight.
1798, method of printing from a plate, from French stÃ©rÃ©otype (adj.) printing by means of a solid plate of type, from Greek stereos solid (see sterile) + French type type.. Noun meaning a stereotype plate is from 1817. Meaning image perpetuated without change is first recorded 1850, from the verb in this sense, which is from 1819. Meaning preconceived and oversimplified notion of characteristics typical of a person or group is recorded from 1922.