The term equatorial refers to something that is located on or related to the Equator, which is an imaginary line that circles the Earth, dividing it into the Northern and Southern Hemispheres. The Equator is 0 degrees latitude and is an important reference point for geographical coordinates and measurements of longitude. Anything equatorial would be situated directly on this line or very close to it, experiencing similar daylight hours throughout the year due to its position in relation to the sun.