|1.||the act of magnifying or the state of being magnified|
|2.||the degree to which something is magnified|
|3.||a copy, photograph, drawing, etc, of something magnified|
|4.||a measure of the ability of a lens or other optical instrument to magnify, expressed as the ratio of the size of the image to that of the object|
|a stew of meat, vegetables, potatoes, etc.|
|a gadget; dingus; thingumbob.|
in optics, the size of an image relative to the size of the object creating it. Linear (sometimes called lateral or transverse) magnification refers to the ratio of image length to object length measured in planes that are perpendicular to the optical axis. A negative value of linear magnification denotes an inverted image. Longitudinal magnification denotes the factor by which an image increases in size, as measured along the optical axis. Angular magnification is equal to the ratio of the tangents of the angles subtended by an object and its image when measured from a given point in the instrument, as with magnifiers and binoculars.
Learn more about magnification with a free trial on Britannica.com.