impactite

[im-pak-tahyt, im-pak-tahyt]

noun

a glassy or crystalline material composed of slag and meteoric materials, produced by the impact of a meteorite striking the earth.

Origin:
1935–40; impact + -ite¹

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Impactite is always a great word to know.

So is interrobang. 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.

a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

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impactite

im·pact·ite