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The terms "a.m." and "p.m." are abbreviations of the Latin ante meridiem (before midday) and post meridiem (after midday). Depending on the style guide referenced, the abbreviations "a.m." and "p.m." are variously written in small capitals (" am " and " pm "), [ 13 ] [ 14 ] uppercase letters without a period ("AM" and "PM"), uppercase letters ...
The main discussion of these abbreviations in the context of drug prescriptions and other medical ... post cibum p.m., pm, PM ... quaque post meridiem q.s., qs a ...
PM stands for “post meridiem,” meaning “after noon” or “after midday,” and as such applies to the times from noon onward. English-speaking countries have been using the “AM” and ...
post meridiem "after midday" Used on the twelve-hour clock to indicate times after 12 midday. Example: "We will meet the mayor at 2:00 p.m." (14:00 in 24-hour clock) p.m.a. post mortem auctoris "after the author's death" p.p. per pro. per procurationem "through the agency of" PRN pro re nata "for the thing born"
PM: post meridiem (in the afternoon) PMB: post-menopausal bleeding (bleeding after menopause) PMD: primary medical doctor PMDD: premenstrual dysphoric disorder: PMH: past medical history (see also medical history) perimesencephalic subarachnoid hemorrhage progressive macular hypomelanosis: PMI: point of maximal impulse or apical beat point of ...
at 4:00 pm (can replace 4 with other numbers) mistaken to mean every 4 hours q.a.d. quaque alternis die: every other day q.a.m. quaque die ante meridiem: every morning (every day before noon) q.d./q.1.d. quaque die: every day mistaken for "QOD" or "qds," AMA style avoids use of this abbreviation (spell out "every day") q.d.a.m. quaque die ante ...
Initially, the day was divided into two parts: the ante meridiem (before noon) and the post meridiem (after noon). With the introduction of the Greek sundial to Rome from the Samnites circa 293 BC, the period of the natural day from sunrise to sunset was divided into twelve hours. [1] [2] [3]
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