Search results
Results from the WOW.Com Content Network
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 ...
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 ...
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 ...
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 meridiem: once daily in the morning q.d.p.m. quaque die post meridiem: once daily in the evening q.d.s. quater die sumendus: 4 ...
The main discussion of these abbreviations in the context of drug prescriptions and other medical prescriptions is at List of abbreviations used in medical prescriptions. Some of these abbreviations are best not used, as marked and explained here.
PM or pm (also written P.M. or p.m.) is an abbreviation for Latin post meridiem, meaning "after midday" in the 12-hour clock. PM or Pm or pm may also refer to: Arts and entertainment
At the equinoxes sunrise is around 6 a.m. (Latin: ante meridiem, before noon), and sunset around 6 p.m. (Latin: post meridiem, after noon). In the modern 24-hour clock, counting the hours starts at midnight, and hours are numbered from 0 to 23. Solar noon is always close to 12:00, again differing according to the equation of time.
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]