Page:U.S. Government Printing Office Style Manual 2008.djvu/261

Abbreviations and Letter Symbols


 * Ph—phenyl
 * Phar.D.—doctor of pharmacy
 * Ph.B. or B.Ph.—bachelor of philosophy
 * Ph.D. or D.Ph.—doctor of philosophy
 * Ph.G.—graduate in pharmacy
 * PHS—Public Health Service
 * PIN—personal identification number
 * PL—place
 * p.m.—(post meridiem) after noon
 * P.O. Box (with number)—but post office box (in general sense)
 * POP—Point of Presence; Post Office Protocol
 * POW—prisoner of war (plural POWs)
 * PTSD—post-traumatic- stress disorder
 * Private Res. (with number)—private resolution
 * Prof.—professor
 * pro tem—(pro tempore) temporarily
 * P.S.—(post scriptum) postscript; public school (with number)
 * PTA—parent-teachers' association
 * Public Res. (with number)—public resolution
 * PX—post exchange
 * QT—on the quiet
 * racon—radar beacon
 * radar—radio detection and ranging
 * R&D—research and development
 * rato—rocket-assisted takeoff
 * Rd.—road
 * RDT&E—research, development, testing, and evaluation
 * REA—Rural Electrification Administration
 * Rev.—reverend
 * Rev. Stat.—Revised Statutes
 * RF—radiofrequency
 * R.F.D.—rural free delivery
 * Rh—Rhesus (blood factor)
 * RIF—reduction(s) in force; RIFed, RIFing, RIFs
 * R.N.—registered nurse
 * ROTC—Reserve Officers' Training Corps
 * RR.—railroad
 * RRB—Railroad Retirement Board
 * Rt. Rev.—right reverend
 * Ry—railway
 * S.—south; Senate bill (with number)
 * SAC—Strategic Air Command
 * SAE—Society of Automotive Engineers
 * S&L(s)—savings and loan(s)
 * SALT—strategic arms limitation talks
 * SAR—Sons of the American Revolution
 * SBA—Small Business Administration
 * sc.—(scilicet) namely (see also ss)
 * s.c.—small caps
 * S. Con. Res. (with number)—Senate concurrent resolution
 * s.d.—(sine die) without date
 * SDI—Strategic Defense Initiative
 * S. Doc. (with number)—Senate document
 * SE.—southeast
 * SEATO—Southeast Asia Treaty Organization
 * SEC—Securities and Exchange Commission
 * sec—secant
 * sech—hyperbolic secant
 * 2d—second
 * SHF—superhigh frequency
 * shoran—short range (radio)