Dictionary![]() ![]() Ds—Symbol, Chem. (formerly) dysprosium. dsdecistere; decisteres. D.S.1. Music.from the sign. [< It dal segno] 2. Doctor of Science. d.s.1. daylight saving. 2. Com. Also,D/S days after sight. 3. document signed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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