thorotrast
A radiographic contrast medium composed of a suspension of thorium dioxideA radiographic contrast medium composed of a suspension of thorium dioxide.
Meaning
1 senses(uncountable)A radiographic contrast medium composed of a suspension of thorium dioxide.
Origin
Blend of thorium + contrast. Originally a trade name.Blend of thorium + contrast. Originally a trade name.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable