hemispheres

Noun

hemisphere (plural hemispheres)

1. Half of the celestial sphere, as divided by either the ecliptic or the celestial equator .

   Synonyms:

   celestial hemisphere

2. (figuratively) A realm or domain of activity .
   • Love is the Columbus of our moral world, and opens, at some period or other, a new hemisphere to our view.1831, L[etitia] E[lizabeth] L[andon], Romance and Reality. […], volume III, London: Henry Colburn and Richard Bentley, […], →OCLC, pages 91–92

   Synonyms:

   sphere

3. Half of the Earth, such as the Northern Hemisphere, Southern Hemisphere, Western Hemisphere or Eastern Hemisphere, Land Hemisphere, Water Hemisphere etc. .
   • Bangkok typically sees temperatures between 73 and 91 degrees Fahrenheit (23 to 33 degrees Celsius) during January, according to the Tourism Authority of Thailand – one reason why it’s a paradise for many tourists looking to escape winter in the northern hemisphere.2025 January 14, Jay Ganglani, Kocha Olarn, “59 degrees Fahrenheit might not sound that chilly. In Thailand’s capital, it’s a shock to the system”, in CNN, archived from the original on 24 Jan 2025
4. Any half-sphere, formed by a plane intersecting the center of a sphere. .

   Synonyms:

   half-sphere

5. A map or projection of a celestial or terrestrial hemisphere .

   Synonyms:

   planisphere

6. Either of the two halves of the cerebrum. .

   Synonyms:

   cerebral hemisphere