What does SD stand for?

What does SD mean?

SD	Scientific Director Governmental » FDA
SD	Shadow Dale Miscellaneous » Science Fiction
SD	Signatory Description Governmental » United Nations
SD	Service Design Business » Products
SD	Strategy Division Governmental » Military
SD	Secret Diamond Business » Firms
SD	SicherheitsDienst Governmental » Nazi Regime
SD	Side Door Academic & Science » Architecture
SD	Sand Drain Miscellaneous » Construction
SD	stabe disease Medical
SD	San Diego Padres Community » Sports
SD	Smart Disc Computing » Hardware
SD	shoulder disarticulation Medical