transillumination

noun

A shining through (something).

Scrabble 19
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Meanings

nountransillumination (countable and uncountable, plural transilluminations)

plural transilluminations · alternative translumination

  1. countableuncountableA shining through (something).
  2. countableuncountablemedicineThe examination of a body part, or a tissue sample, by shining light through it.

    Transillumination of anterior teeth, using the composite curing light placed labially to shine through the tooth and be viewed using the mouth mirror, shows up any cavities as dark interproximal shadows.

    2013, Carole Hollins, Questions and Answers for Dental Nurses, page 44

Origin

From trans- + illumination.

Full word history & related roots →
Cite this entry
APA

transillumination. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/transillumination

MLA

“transillumination.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/transillumination. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “transillumination,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/transillumination.

Source: transillumination on Wiktionary, CC BY-SA 4.0.