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[ adverb ] used in negative statement to describe a situation that has existed up to this point or up to the present time
Examples "So far he hasn't called" "the sun isn't up yet" Used in print (Walter H. Buchsbaum, "Advances in Medical Electronics"...)From the resulting data the doctor can determine lung defects with hitherto unknown accuracy and detail . By submerging the patient in a tub and rotating the transducer while the scanning goes_on , they have been able to get cross-section views of the neck , as shown in Fig. 7 , as_well_as many other hitherto impossible insights . |
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