photoreceptor

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photoreceptor

 [fo″to-re-sep´tor]
a nerve end-organ or receptor sensitive to light.

pho·to·re·cep·tor

(fō'tō-rē-sep'tŏr, -tōr),
A receptor that is sensitive to light, for example, a retinal rod or cone.
Synonym(s): photoceptor
[photo- + L. re-cipio, pp. -ceptus, to receive, fr. capio, to take]

photoreceptor

(fō′tō-rĭ-sĕp′tər)
n.
A nerve ending, cell, or group of cells specialized to sense or receive light.

photoreceptor

Neurology A sensory nerve ending that responds to stimulation by light

pho·to·re·cep·tor

(fō'tō-rĕ-sep'tŏr)
A light-sensitive receptor (e.g., a retinal rod or cone).
[photo- + L. re-cipio, pp. -ceptus, to receive, fr. capio, to take]

photoreceptor

a structure or pigment sensitive to light. In animals such structures are called eyes; they contain sensitive pigments which, when stimulated by light, activate the nervous system. In plants photoreceptors tend to be pigments of various sorts. For example, PHYTOCHROMES sensitive to red light (see PHOTO PERIODISM and flavo-proteins sensitive to blue light trigger AUXIN production, leading to PHOTOTROPISM.

photoreceptor 

A receptor capable of reacting when stimulated by light, such as the rods and cones of the retina. See cone cell; rod cell.