thimble chamber

noun

Definition of thimble chamber

: an ionization chamber for measuring roentgens

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History and Etymology for thimble chamber

so called from its shape and size

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Cite this Entry

“Thimble chamber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thimble%20chamber. Accessed 10 May. 2021.

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