Term: lens: a transparent optical device used to converge or diverge transmitted light and to form images
Broader: optical device: a device for producing or controlling light | Unrelated: fechner's law: (psychophysics) the concept that the magnitude of a subjective sensation increases proportional to the logarithm of the stimulus intensity; based on early work by E. H. Weber
Broader: optical device: a device for producing or controlling light | Unrelated: pen: an enclosure for confining livestock
Broader: optical device: a device for producing or controlling light | Unrelated: riding mower: a power mower you can ride on
Broader: optical device: a device for producing or controlling light | Unrelated: featherweight: a professional boxer who weighs between 123 and 126 pounds
Broader: optical device: a device for producing or controlling light | Unrelated: caution: judiciousness in avoiding harm or danger
Broader: optical device: a device for producing or controlling light | Unrelated: absolute space: physical space independent of what occupies it
Broader: optical device: a device for producing or controlling light | Unrelated: finance: the management of money and credit and banking and investments
Broader: optical device: a device for producing or controlling light | Unrelated: gadaba: the Dravidian language spoken by the Gadaba
Broader: optical device: a device for producing or controlling light | Unrelated: adenium: one species: succulent shrub or tree of tropical Africa and Arabia
Broader: optical device: a device for producing or controlling light | Unrelated: plasterboard: wallboard with a gypsum plaster core bonded to layers of paper or fiberboard; used instead of plaster or wallboard to make interior walls