radiolucent

adjective

ra·dio·lu·cent ˌrā-dē-ō-ˈlü-sᵊnt

: partly or wholly permeable to radiation

radiolucent tissues

radiolucency

ˌrā-dē-ō-ˈlü-sᵊn(t)-sē

noun

Word History

First Known Use

1917, in the meaning defined above

Time Traveler

The first known use of radiolucent was in 1917

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Cite this Entry

Style

“Radiolucent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiolucent. Accessed 4 Nov. 2025.

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Medical Definition

radiolucent

adjective

ra·dio·lu·cent -ˈlüs-ᵊnt

: partly or wholly permeable to radiation and especially X-rays compare radiopaque

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