| 释义 |
ante meridiem
an·te me·rid·i·em A0328200 (ăn′tē mə-rĭd′ē-əm)adv. & adj. Abbr. AM or am or am Before noon. Used chiefly in the abbreviated form to specify the hour: 10:30 am. See Usage Note at AM.
[Latin ante, before + merīdiem, accusative of merīdiēs, noon.]ante meridiem (ˈæntɪ məˈrɪdɪəm) (Horology) the full form of a.m.[Latin, from ante- + merīdiēs midday]am (æm; unstressed əm, m)
v. 1st pers. sing. pres. indic. of be. [before 900; Old English am, eam, eom] AM 1. Asian male. 2. amplitude modulation: a method of impressing a signal on a radio carrier wave by varying its amplitude. 3. a system of broadcasting using this method. Compare FM. [1935–40] Am
Chem. Symbol. americium. Am. 1. America. 2. American. A.M. Master of Arts. [< Latin Artium Magister] a.m. or A.M., 1. before noon. 2. the period from midnight to noon, esp. the period of daylight prior to noon. Compare p.m. [1755–65; < Latin ante merīdiem] usage: The abbreviation a.m. refers to the period from midnight until noon. One minute before noon is 11:59 a.m. One minute after noon is 12:01 p.m. Many people distinguish between noon and midnight by saying 12 noon and 12 midnight. Expressions such as 6 a.m. in the morning and 9 p.m. at night are redundant. Thesaurus| Adj. | 1. |  ante meridiem - before noon a.m.antemeridian - before noon | | Adv. | 1. |  ante meridiem - before noon; "let's meet at 11 A.M."A.M.Latin - any dialect of the language of ancient Rome |
TranslationsMedicalSeeAmAcronymsSeeAMante meridiem
Related to ante meridiem: post meridiemSynonyms for ante meridiemadj before noonSynonymsRelated Wordsadv before noonSynonymsRelated Words |