- a standard paper size, 297 × 420 mm
- (as adjective)an A3 book
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British Dictionary definitions for A3 (2 of 2)
Example sentences from the Web for A3
A3: We have the responsibility to be kind to one another, and that responsibility extends to celebrities, too.
At the lower right corner, one can see that Level D is where the “guru” strand A3 finally met its demise.
A2 seemed the most promising, but A3 could also have potential, so I would carry these two options on to the next level.
Witness Kate Middleton, who drives the most boringly middle class car in Britain—a German-made Audi A3.
As Bleckner put it to The Daily Beast, A3 is a study in “luxury, tragedy, and beauty.”
In algebra a3 denotes three a's multiplied together; an means that n of the letter a are to be multiplied.The New Gresham Encyclopedia|Various
That this result may ensue, the shaft c3 of the pinion must be able to slide endwise, without losing its hold of a3 and b3.A Dictionary of Arts, Manufactures and Mines|Andrew Ure
Signature A of the first issue is not lettered; the first page of the Preface in the second is lettered A3.
"Pieces contained in this Book," A3 misprinted A2 (verso blank).
If we set this too far forward, the tooth A3 will encounter the roller while the tooth A2 will be free.Watch and Clock Escapements|Anonymous