transilluminate

American  

[trans-i-loo-muh-neyt, tranz-] / ˌtræns ɪˈlu məˌneɪt, ˌtrænz- /

verb (used with object)

transilluminated, transilluminating

1. to cause light to pass through.

2. Medicine/Medical.  to throw a strong light through (an organ or part) as a means of diagnosis.

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transilluminate British  

/ ˌtrænzɪˈluːmɪˌneɪt /

verb

1. (tr) med to pass a light through the wall of (a bodily cavity, membrane, etc) in order to detect fluid, lesions, etc

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Other Word Forms

• transillumination noun
• transilluminator noun

Etymology

Origin of transilluminate

First recorded in 1885–90; trans- + illuminate