photo-, phot-, -photic +
(Greek: light; ultraviolet and infrared radiation; radiant energy)
photobacteria
Bacteria that derive energy from light by the process of photosynthesis.
photobacterium
1. A genus including certain comma-shaped marine bacteria which emit bluish or greenish phosphorescence.
2. Bacteria that are common in the marine environment and on the surfaces and in the intestinal contents of marine animals.
Some species are bioluminescent (they have the ability to emit light) and are found as symbionts in specialised luminous organs of fish.
photobibliography
Description of books with the aid of photography.
photobiography
A person’s life shown in a series of photographs.
photobiological
1. A reference to the effects of light on living plants and animals.
2. Related to the branch of biology that deals with the effects of radiant energy on living organisms.
photobiological (hydrogen) production
A proposed process to produce commercial hydrogen, based on the fact that certain photosynthetic microbes produce hydrogen from water in their metabolic activities.
photobiology
1. The study of the effects of light on living things.
2. That part of biology designed to destroy tissues with a concentrated light beam; such as, a laser.
photobiotic
1. In biology, dependent upon light for existence.
2. Used to describe organisms that need light in order to live and grow.
photocatalysis
1. The promotion or stimulation of a reaction by light.
2. A change in the rate of a chemical reaction due to the action of light.
3. The acceleration or deceleration of the speed at which a chemical reaction occurs, caused by electromagnetic radiation and especially visible light.
photocatalyst
1. A substance which in sunlight is utilized; such as, chlorophyll in the photosynthesis of carbohydrates by green plants.
2. A substance that is able to produce, by absorption of light, chemical transformations of the reaction participants; for example chlorophyll in a process of photosynthesis.
photocatalytic
1. Promoted or stimulated by light.
2. Pertaining to, characterized by, or causing photocatalysis.
photocauterization
A procedure in which tissue is destroyed by using a light beam; such as, a laser.
photocautery
A surgical instrument designed to destroy tissues with a concentrated light beam; such as, a laser.
photocautherization
A procedure in which tissue is destroyed by using a light beam; such as, a laser.
photocell, photoelectric cell
A device that generates electrical energy from light energy, usually as a voltage or current.
Etymologically related "light, shine, glow" word families:
ethero-;
fulg-;
luco-;
lumen-, lum-;
luna, luni-;
lustr-;
phengo-;
pheno-;
phospho-;
scinti-, scintill-;
splendo-.
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