correct
The word metric is said the same in Latin as it is in English. In Italian it is said as the word metriico.
Some elements have weird abbreviations because they are derived from their Latin or Greek names. The abbreviations are often based on the first letter or first two letters of the element's name in a different language. This can lead to unconventional abbreviations that may not make immediate sense in English.
No, but they should be italicized since they are, indeed, Latin.
German shorthand does not use Latin abbreviations or letters.
Yes, the names of languages are capitalized.
P in medical abbreviations stands for the Latin "post" meaning "after." Similarly, a means before because the Latin word for "before" is "ante."
Marcus Valerius Probus has written: 'Hoc in volvmine haec continentvr' -- subject(s): Abbreviations, Latin, Latin Abbreviations
That is the correct spelling of the proper noun Latin America (Hispanic areas of the Americas).
AM and PM, in English, mean "before noon" and "after noon", respectively. The abbreviations AM and PM come from Latin words, ante meridiem (which translates to before midday) for AM, post meridiem (which translates to after midday) for PM.
Yes, it stands for Latin American.
Yes. They are abbreviations for the Latin terms ante meridiem and post meridiem, and should therefore always be capitalized. Technically they should be spelled A.M. and P.M. for the same reason, but they are most often not and it is considered correct either way.
They are acronyms. A.M. (Latin ante meridiem, "before noon") and P.M. (Latin post meridiem, "after noon")