An Anti-Meridian is a meridian opposite any given meridian of longitude.
Specifically the Anti-Meridian is the 180th meridian. That is the meridian opposite of the Prime Meridian.
The term Anti-Meridian is sometimes confused with Ante Meridiem.
Ante Meridiem is latin for before noon. Usually shown in English as "a.m.". Similarly, post meridiem, after noon, is shown in English as "p.m.".
It means before noon and postmeridian means after noon.
An antimeridian is a reference line at 180 degrees longitude, on the opposite side of the Earth to the prime meridian.
VERTICAL
The compass needle will only align itself with the magnetic meridian if it is free from all other influences except the magnetic field of earth.This is rarely so, particularly on a ship which constructed on steel. The magnetism induced in the steel by the earths magnetic field causes the compass needle to deviate from the magnetic meridian, by an amount which is called the DEVIATION.
its after twelve o clock. afternoon "pm" stands for "post-meridian", which means the Sun has passed the mid-day point in the sky.
The equator divides the Earth into two equal parts, the northern and southern hemispheres. The prime meridian divides the Earth into the equal eastern and western hemispheres.
Transport wander of a gyroscope is apparent when the gyroscope crosses a meridian that is converging with another. So, at any latitude other than the Equator, any East-West movement will cause transport wander. As North-South movement involves tracking along a meridian (and not crossing) then no transport wander occurs. Although East-West movement along the Equator does involve crossing meridians, because all meridians are parallel at the Equator no transport wander occurs.
It was the ante meridian of the day.
Ante Meridian and Post Meridian
Ante-meridian and post meridian
ante meridian
postmeridian
She had her breakfast as late as ante-meridian. This is an example using the word ante-meridian.
Ante meansbefore and post means behind.Meridian is from the Latin for Midday.Ante Meridian = am (before midday)Post Meridian = pm (after midday)
AM is ante meridian - After 12Midnight and before 12 Noon. PM is post meridian - After 12 Noon and Before 12 Midnight.
postmeridian
Am = Ante meridian and Pm = post meridian
Ante-Meridian; before midday; morning.
AM as in time means ANTE MERIDIAN PM means POST MERIDIAN