HEMISPHERE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does hemisphere mean? 

• HEMISPHERE (noun)
  The noun HEMISPHERE has 3 senses:

1. half of the terrestrial globe

2. half of a sphere

3. either half of the cerebrum

  Familiarity information: HEMISPHERE used as a noun is uncommon.

 Dictionary entry details 

• HEMISPHERE (noun)

Sense 1

Meaning:

Half of the terrestrial globe

Classified under:

Nouns denoting spatial position

Hypernyms ("hemisphere" is a kind of...):

geographic area; geographic region; geographical area; geographical region (a demarcated area of the Earth)

Part meronym:

earth; globe; world (the 3rd planet from the sun; the planet we live on)

Hyponyms (each of the following is a kind of "hemisphere"):

eastern hemisphere; orient (the hemisphere that includes Eurasia and Africa and Australia)

New World; occident; western hemisphere (the hemisphere that includes North America and South America)

Instance hyponyms:

northern hemisphere (the hemisphere that is to the north of the equator)

southern hemisphere (the hemisphere to the south of the equator)

Derivation:

hemispherical (of or relating to or being a hemisphere)

Sense 2

Meaning:

Half of a sphere

Classified under:

Nouns denoting two and three dimensional shapes

Hypernyms ("hemisphere" is a kind of...):

subfigure (a figure that is a part of another figure)

Derivation:

hemispherical (of or relating to or being a hemisphere)

Sense 3

Meaning:

Either half of the cerebrum

Classified under:

Nouns denoting body parts

Synonyms:

cerebral hemisphere; hemisphere

Hypernyms ("hemisphere" is a kind of...):

neural structure (a structure that is part of the nervous system)

Hyponyms (each of the following is a kind of "hemisphere"):

left brain; left hemisphere (the cerebral hemisphere to the left of the corpus callosum that controls the right half of the body)

right brain; right hemisphere (the cerebral hemisphere to the right of the corpus callosum that controls the left half of the body)

Holonyms ("hemisphere" is a part of...):

cerebrum (anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans)

Derivation:

hemispheric (of or relating to the cerebral hemispheres)

hemispherical (of or relating to or being a hemisphere)

 Context examples 

One side of the planet always faces the star; the other side is in permanent darkness. (Similarly, our moon is tidally locked to Earth; only one hemisphere is permanently visible from Earth.)

(Hubble Observes Exoplanet that Snows Sunscreen, NASA)

A Hodgkin lymphoma that arises in the cerebral hemispheres as a primary lesion.

(Cerebral Hodgkin Lymphoma, NCI Thesaurus)

A non-Hodgkin or Hodgkin lymphoma that arises in the cerebral hemispheres as a primary lesion.

(Cerebral Lymphoma, NCI Thesaurus)

A WHO grade IV malignant astrocytic tumor that arises from the brain, usually the cerebral hemispheres.

(Brain Glioblastoma, NCI Thesaurus)

A hemangioma arising from the cerebral hemisphere.

(Cerebral Hemangioma, NCI Thesaurus)

The region is far west of the hemisphere NASA’s New Horizons spacecraft viewed during close approach last summer.

(Pluto’s ‘Halo’ Craters, NASA)

The new study suggests that fierce winds may blow the sundered water molecules into the planets' nightside hemispheres.

(Water Is Destroyed, Then Reborn in Ultrahot Jupiters, NASA/JPL)

A long curved fold located in the medial surface of the cerebral hemisphere.

(Cingulate Gyrus, NCI Thesaurus)

An ependymoblastoma arising from the cerebral hemispheres, occurring in children.

(Childhood Cerebral Ependymoblastoma, NCI Thesaurus)

A non-Hodgkin lymphoma that arises in the cerebral hemispheres as a primary lesion.

(Cerebral Non-Hodgkin Lymphoma, NCI Thesaurus)