retroillumination

noun

The examination of a body part, or a tissue sample, by shining light from directly behind it.

Scrabble 19
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Meanings

nounretroillumination (uncountable)
  1. uncountablemedicineThe examination of a body part, or a tissue sample, by shining light from directly behind it.

Origin

From retro- + illumination.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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