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rod cell

rod cell

5.7
A tiny part at the back of the eye that helps you see in low light
  • noun
  • /rɒd sɛl/
  • Specialized
translation icon : célula de bastón
  • The function of rod cells in our eyes is crucial for vision when it is dark outside.

Examples

  • At the expense of fine spatial resolution, many rod cells are connected in parallel to a single neuron.

    Academic text (1995)
  • Apparently, one of the key factors in human night vision is a chemical in the rod cells of the eye called rhodopsin.

  • Structure of a rod cell in the retina.

    Blog text (8)
  • One problem with those sensitive rod cells is they mostly help with peripheral vision.

  • Microscope image of the fiber taper and a suction micropipette with the constrained rod cell.

    Blog text (8)
  • The results indicate differences in average responses of rod cells to coherent and pseudothermal light of the same intensity, and also differences in signal-to-noise ratios and second-order intensity correlation functions.

    Blog text (8)
  • In low-light conditions, rod cells enable us to see clearly at night.

  • Adaptation to darkness is primarily due to the presence of rod cells in the retina.

Synonyms

rod
vsrod cell
  • Specialized
24 7.5

A light sensitive cell in the eye that helps you see in dim light

is the same meaning but uses a fuller descriptive phrase
retinal rod
vsrod cell
  • Specialized
7.4

A cell at the back of the eye that helps you see in very low light

is the same meaning but expressed as a noun phrase with location word

How Sensitive

rod cell
  • Specialized
5.7
visual cell
  • Specialized
6.5
cone cell
  • Specialized
5.6

Surface Forms

rod cell singular
rod cells plural

Morphology

rod + cell

The meaning is directly and transparently composed from 'rod' (a photoreceptor sensitive to low light) + 'cell' (a microscopic living unit), so a B1 learner who knows both constituents can infer this is a type of retinal cell for dim-light vision. This noun-noun compositional pattern is common and cross-linguistically recognizable, so no prior exposure is required.

Etymology

Rod cell: The name rod cell comes from the cell's long, thin shape, because it looks like a tiny rod or stick. That's why the name is used for the eye cells that are very sensitive in 'low light' and help us see at night.