(of a black hole) A region of around a black hole where photons travel in orbits around the singularity, just beyond the event horizon.

Synonym of cinematographer

(physics, figuratively) A photonic Bose-Einstein condensate, comprised of thousands of photons sufficiently concentrated and cooled in an optical well.

(parapsychology) spirit photography

(parapsychology) The purported art of taking photographs of the spirits of dead people, other spiritual entities, ectoplasm, auras, and the like; a common practice in the late 19th and early 20th centuries, especially using black-and-white photography and the technique of double exposure.

Alternative form of femtophotography

Any material that absorbs light, or reduces its energy

(parapsychology, photography) A technique for recording photographic images of corona discharges and hence, supposedly, the auras of living creatures.

(photography) A photograph taken from an aircraft, or by a drone remotely controlled from the ground.

plural of photoabatement