…(of a person’s face or eyes) suddenly become animated with liveliness or joy…
…a flat box having a side of translucent glass or plastic and containing an electric light, so as to provide an evenly lighted flat surface or even illumination, such as in a studio…
…a handheld gunlike photosensitive device used chiefly in computer games, held to the display screen for passing information to the computer…
…a handheld pen-like photosensitive device held to the display screen of a computer terminal for passing information to the computer…
…a red traffic light or similar signal that instructs moving vehicles to stop…
…a small, squat candle in a metal case, used for decoration or within a stand to keep food or drink warm…
…a small pane above a main window, which typically opens outwards and upwards…
…a red light at the back of a vehicle that is automatically illuminated when the brakes are applied…
…a light positioned to illuminate the parts of a photographic subject which the main lighting leaves in shade…
…a supplementary light used in photography or filming that does not change the character of the main light and is used chiefly to lighten shadows…
…personal spiritual revelation; a source of enlightenment within oneself…
…a glass bulb inserted into a lamp or a socket in a ceiling, which provides light by passing an electric current through a filament or a pocket of inert gas…
…a protein subunit that, as one of a pair, forms part of the main antigen-binding region of an immunoglobulin molecule…
…a surface in space-time, represented as a cone in three dimensions, comprising all the points from which a light signal would reach a given point (at the apex) simultaneously, and which therefore appear simultaneous to an observer at the apex…
…a graph showing the variation in the light received over a period of time from a variable star or other varying celestial object…
…an instrument for measuring the intensity of light, used chiefly to show the correct exposure when taking a photograph…
…an architectural feature that captures natural light and draws it into parts of a building…
…a spectacle of coloured lights that move and change, especially at a pop concert…
…a horizontal or tilted surface of translucent glass or plastic with a light behind it, used as a light box for drawing or viewing transparencies or negatives…
…a tall structure fitted with electric lights, typically used for outdoor illumination…
…an illuminated trap for attracting and catching nocturnal flying insects…
…water containing the normal proportion (or less) of deuterium oxide, i.e. about 0.02 per cent, especially to distinguish it from heavy water…
…an open area or vertical shaft in the centre of a building, typically roofed with glass, bringing natural light to the lower floors or basement…
…a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 million million miles)…
…good natural light without direct sun, especially as desired by artists…
…a small gas burner kept alight permanently to light a larger burner when needed, especially on a gas cooker or boiler…
…a red light at the rear of a vehicle; a tail light…
