omnigraph

[om-ni-graf, -grahf]

om·ni·graph

[om-ni-graf, -grahf]
noun
a device for converting Morse Code signals that are punched on a tape into audio signals, used in the training of telegraph operators.

Origin:
1860–65; omni- + -graph
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Omnigraph is always a great word to know.
So is doohickey. Does it mean:
a gadget; dingus; thingumbob.
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.
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