What does arc seconds mean?
Arc seconds means plural of arcsecond.
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Pronunciation varies by accent · noun
plural of arcsecond.
Use arc seconds when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Arc seconds means plural of arcsecond.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use arc seconds where its definition matches the intended context.
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