roentgen opaque

roent·gen·o·paque

[rent-guh-noh-peyk, -juh-, ruhnt-]
adjective
not permitting the passage of x-rays.

Origin:
roentgen(o)- + opaque

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World English Dictionary
roentgenopaque or röntgenopaque (ˌrɒntɡənəʊˈpeɪk, -tjən-, ˌrɛnt-, ˌrɒntɡənəʊˈpeɪk, -tjən-, ˌrɛnt-) [Click for IPA pronunciation guide]
 
adj
(of a material) not allowing the transmission of X-rays
 
röntgenopaque or röntgenopaque
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Roentgen opaque is always a great word to know.
So is zedonk. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
the offspring of a zebra and a donkey.
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