Those lines are called lines of latitude. They are also known as parallels as they run parallel to the equator.
When east west and south are alike, we call it a celestial sphere.
North, South, East and West are the four cardinal points of the compass.
A wind blowing from east to west is called a westerly wind.
The east side
East and west are determined by the Earth's rotation on its axis from west to east. Specifically, east is the direction toward which the Earth rotates, while west is the opposite direction. This means that east is where the sun rises and west is where it sets.
When east west and south are alike, we call it a celestial sphere.
The equator.
The lines of latitude and longitude.
North, South, East and West are the four cardinal points of the compass.
Latitudinal measurements. The East/West centerline is the Equator.
west Asia
That could be a description of the parallels of latitude. They're not only invisible, they're also totally imaginary.
You're thinking of 'parallels of constant latitude'.
They are called lines of "latitude".
An invisible line that forms east-west circles around the Earth is called both parallel and line of latitude. An imaginary line that circles the earth from north to south is called both meridian and line of longitude.
East Egg and West Egg.
A wind blowing from east to west is called a westerly wind.