Definition of photoreceptor in English:
photoreceptor
noun ˈfəʊtəʊrɪˌsɛptəˌfoʊdoʊrəˈsɛptər
A structure in a living organism, especially a sensory cell or sense organ, that responds to light falling on it.
Example sentencesExamples
- All visual systems begin with photoreceptors, which are cells that respond to light energy.
- Indeed, most organisms have evolved specialized photoreceptors for circadian light perception.
- The eight photoreceptors and 12 accessory cells occupy selfsame and stereotyped positions within each unit eye.
- Both Z and phototropin have been implicated as blue light photoreceptors of guard cells.
- In the case of the retina and the pineal of lower vertebrates, the cells involved are direct photoreceptors.
Derivatives
adjective
For instance, the photoreceptive cells, which house the visual pigments, are bigger in lungfish than for any other vertebrate, probably making them more sensitive to light.
Example sentencesExamples
- Visual pigments are photoreceptive molecules that occur in rod and cone photoreceptor cells in the retina and characterize the vision of an animal.
- Higher plants have evolved a complex photoreceptive system involving distinct families of photoreceptors to perceive light signals.
- The second mutant phenotype is a slower rate of photoreceptive disk membrane renewal in the outer segments, caused by perturbed phagocytosis of disk membranes.
- Comparison of their photoreceptive cells with those of the chordates corroborated such a phylogenetic position.
Definition of photoreceptor in US English:
photoreceptor
nounˌfōdōrəˈseptərˌfoʊdoʊrəˈsɛptər
A structure in a living organism, especially a sensory cell or sense organ, that responds to light falling on it.
Example sentencesExamples
- The eight photoreceptors and 12 accessory cells occupy selfsame and stereotyped positions within each unit eye.
- Indeed, most organisms have evolved specialized photoreceptors for circadian light perception.
- In the case of the retina and the pineal of lower vertebrates, the cells involved are direct photoreceptors.
- All visual systems begin with photoreceptors, which are cells that respond to light energy.
- Both Z and phototropin have been implicated as blue light photoreceptors of guard cells.