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Photo Words: “photoesthesia” to “sthenophotic”,
Part 2 of 2

Words that include: photo-, phot-, -photic (Greek: light)

A reference to or having a sensation of light.
Possessing or pertaining to the sensation elicited by photons (light).
An apparatus for photographing the interior of the stomach.
The production of light, as by bioluminescence.
1. Produced by light, as photogenic epilepsy.
2. Producing or emitting light; phosphorescent.
A photographic image produced without a camera, usually by placing an object on or near a piece of film or light-sensitive paper and exposing it to light.
Literally, “writing with light”. The process of producing images of objects upon a photosensitive surface (such as film) by the chemical action of light or other radiant energy.
1. Relating to, used in, or produced by photography.
2. As accurate and detailed as a photograph.
The art, hobby, or profession of taking photographs, and developing and printing the film or processing the digitized array image.
Initiated through exposure to light.
photokinesis, photokinetic:
1. Movement in response to light.
2. A change in the rate of motion in response to light, as an increase or decrease in motility of bacteria with a change in illumination.
A reference to the lethal effects of light.
1. A branch of physics that deals with light or the study of light and its effects.
2. That science concerned with the production of light and energy, especially regarding therapeutic applications.
photoluminescence, photoluminescent:
1. Luminescence caused by exposure to light. In lower vertebrates it results from the reflection of light by iridophores in the skin.
2. The quality of being luminescent after being exposed to light or other electromagnetic radiation.
photolysis, photolytic:
1. Chemical decomposition or change by the action of light or other form of radiant energy.
2. Decomposition by the influence of light upon organisms.
The sensation of seeing light flashes.
Magnetism induced by the action of light.
Maniacal symptoms developed under the influence of light.
photometer, photometry:
1. An instrument used in measuring the intensity of light, especially in determining the relative intensity of light from different sources.
2. A device for measuring the intensity of infrared, ultraviolet, or visible light.
3. A device for testing the sensitivity of the eye to light by determining the light minimum.
A photograph taken through a microscope.
The regulation of a form by light, as in the induction of flowering in plants by a minimal period of daylight.
The quantum of electromagnetic radiation, which by definition, travels at the speed of light.
An abnormal sensation of light.
Characterized by or pertaining to any abnormality resulting from excessive exposure to light.
1. A pathological effect caused by light.
2. The influence of light upon organisms.
3. Any abnormal change in the skin induced by light.
The ability to perceive light.
A property of living organisms wherein biochemical, physiological, and behavioral changes occur in response to systematic variations in light and darkness, as with the seasons or day and night.
The study of the effects of light and other radiations on drugs and on their pharmacological action.
photophilia, photophilic:
1. Thriving in light; said of organisms.
2. Thriving in intense light.
1. In biology, thriving in light.
2. Loving light; fond of light; attracted to light.
photophobia, photophobic:
1. An abnormal fear of light.
2. An excessive sensitivity to light, especially of the eyes as when one has measles or certain eye conditions.
An instrument for producing sound by the action of light waves.
A luminous light organ on many deepsea and some nocturnal fish, squids, and shrimps.
The process in photosynthesis that converts light energy to stored energy in plants and bacteria.
photopia, photopic:
1. Day vision.
2. Pertaining to vision in the light; said of the eye which has become light-adapted.
photopsia, photopsy:
An appearance as of sparks or flashes due to retinal irritation.
Sneezing caused or evoked by the influence of bright light.
Ophthalmia caused by intense light, such as an electric light, rays from a welding arc, or reflection from snow (ophthalmia nivialis).
A device for testing the acuity of vision by determining the smallest amount of light that will render an object barely visible.
Determination of the flicker fusion threshold.
The oxidation of carbohydrates in plants with the release of carbon dioxide during photosynthesis.
Inflammation of the retlina due to exposure to intense light which may result in transient central scotoma.
Thermal damage to the retina because of intense light.
photosensitive, photosensitivity:
Reacting to incident electromagnetic radiation, especially visible, infrared, and ultraviolet light.
To render sensitive to light.
The intensely bright gaseous outer layer of a star, especially the Sun. Sunspots and faculae are both features of the photosphere.
Exhibiting an abnormally heightened reactivity to sunlight.
1. The process of photosensitizing.
2. Abnormally heightened reactivity of the skin to sunlight.
To sensitize a substance, organism, cell, or tissue to the influence of light.
A device for monitoring the fetal heartbeat that emits a flash of light at each beat.
1. The biological synthesis of chemical compounds in the presence of light.
2. The production of organic sukbstances, primarily sugars, from carbon dioxide and water which occur in green plant cells.
Of, pertaining to, or exhibiting phototaxis.
phototaxis, phototaxy:
1. The movement of an organism in response to stimulus from light.
2. Taxis of an organism elicited in response to the source of a light stimulus.
3. In botany, the movement of a part of a plant toward or away from light sources.
1. The treatment of disease, e.g., herpes simplex, psoriasis, neonatal hyperbilirubinemia, or seasonal affective disorder, by exposure to light; especially, by variously concentrated light rays of specific wavelengths.
2. The use of ultraviolet radiation in the treatment of skin deseases.
A reference to the heat produced by radiant energy.
Involving both light and heat.
The sensitivity of an organism to light.
Vision with eyes that are adapted to normal bright daylight.
1. Capable of rendering the skin abnormally sensitive to light.
2. Pertaining to, characterized by, or producing phototoxicity.
The property of rendering the skin abnormally sensitive to light.
Chemically induced kind of photosensitivity which when in drugs and cosmetics, can react with sunlight to produce mild rashes or burns, severe headaches, or nausea and vomiting. These ingredients can cause problems even when a strong sunblocker is used.
The condition resulting from damage by light.
Capable of deriving energy from light, as in certain green plants and bacteria.
Exhibiting phototropism.
1. In botany, the movement of a part of a plant toward or away from light sources.
2. The tropism (movement) of an organism in response to the source of a light stimulus.
3. The change of color produced in a substance by the action of light.
The excretion of urine having a luminous appearance.
Tolerant of a narrow range of light intensity.
The ability to adapt to comfortable vision in bright illumination