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transillumination

transillumination

1 9.3
Shining light through an object to show its inside or make it glow
  • noun
  • /ˌtrænzɪluˈmɪneɪʃən/
  • Specialized
: transiluminación
  • The technician demonstrated transillumination to reveal the internal structures of the sample.

Examples

  • THE TRANSILLUMINATION KIT IS AN EARLY ATTEMPT TO VIEW THE INSIDE OF THE BODY WITHOUT ACTUALLY PERFORMING SURGERY, WHICH WAS MUCH MORE DANGEROUS AT THE TURN OF THE LAST CENTURY.

  • The dentist used transillumination to check for cavities in the patient's teeth.

  • During the surgery, the doctor applied transillumination to locate the veins more easily.

How Revealing

to CT scan
  • Specialized
1 3.7
radiography
  • Specialized
1 5.8
transillumination
  • Specialized
1 9.3
backlighting
  • Specialized
2 5.6

Surface Forms

Morphology

transillumination = illumination (transparent) = trans + illumination

Formed from 'trans-' (through) + 'illumination' (lighting); the meaning 'shining light through an object' is a direct compositional extension.

Etymology

Transillumination comes from the parts trans- ('across') and illumination ('to light up'), similar to transparent or illuminate. It means shining light through an object to show its hidden patterns or to make it glow.