Living in open, well-lit habitats..

Greek: Apollo; (god)
Latin: Apollo (god, also called Phoebus Apollo)

The god of the sun, music, poetry, and medicine. Symbols: The lyre (a musical instrument resembling a harp), arrows, and the sun chariot.

Having an affinity for or thriving in light.

Living or thriving in conditions of bright light.

1. The light that a burning candle provides.
2. Illumination from a candle or candles.
3. Dusk; twilight; the time to light a candle.

A device for warming a part of the body, as with arthritis.

A baker consists of two or more electric lamps mounted in semicircular containers used for applying heat to various parts of the body.

1. An incandescent lamp, or the light produced by this instrument.
2. Any form of lighting produced by an electric current in any one of several devices; for example, a fluorescent lamp, an arc lamp, an incandescent lamp, etc.

The therapeutic application of electric light by means of cabinets in which the patient sits with the light directed on the affected body part.

Its therapeutic effect depends on the heat from the electric lights.

1. The theory which states that electromagnetic and light waves have identical properties.
2. The theory that light consists of electromagnetic radiation and therefore obeys Maxwell's equations; contrasted with earlier concepts that light was a stream of tiny particles or light was a wave in a medium of ether.

Maxwell's equations consists of the four fundamental equations that describe the behavior of electric and magnetic fields in time and space and the dependence of these fields on the distribution and behavior of electric charges and currents.

These four partial differential equations relate to the electric and magnetic fields to their sources, charge density, and current density.

1. A flash lamp, usually attached to a camera or housed within the camera body, which produces brilliant flashes of light by the discharge of electric current through a gas-filled tube.
2. A high-intensity flashing beam of light produced by charging a capacitor to a very high voltage then discharging it as a high-intensity flash of light in a tube.
3. A lamp that produces very short, intense flashes of light by means of an electric discharge in a gas.

The ability of strobe lights, or electronic flashes, to "freeze" the motion of rapidly moving objects by making them visible for only a fraction of a second makes them very useful in photography and in measuring vibration and other types of high-speed motion.

A warning light, from the idea that the light is for people who can’t figure out the gauges.

The part of industry that involves the production of small goods; for example, electronic equipment.

Fingertip contacts of the abdominal and thoracic surfaces of a person's body to determine the condition of the underlying organs that exist there: The internist used the method of light-touch palpation to feel if Sally's stomach and intestines were in normal condition or not.

A luminous or lighted assistance intended mainly for marine navigation: In the novel Grace was reading, the captain used a marine light to aid him in steering through the thick fog on the ocean.

1. Relating to the part of a town or city where brothels and other commercial sex-based activities are concentrated.

From the red lights traditionally displayed in the doors and windows of brothels. Note: there is no explanation in the dictionary as to why they "displayed" the "red lights".

2. An area or district in a city in which many houses of prostitution are located [1890-95; allegedly so called because brothels displayed red lights].

At least in the U.S., some say the origin of the red light comes from the red lanterns carried by railway workers, which were left outside brothels when the workers entered, so that they could be quickly located when the trains were ready to leave.