# esfera
## Asturian
### Etymology

From Late Latin sphēra, from Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”).

### Pronunciation

* IPA: /esˈfeɾa/ [esˈfe.ɾa]

### Noun

esfera f (plural esferes)
* sphere

#### Related terms

* esféricu

## Catalan
### Etymology

From Late Latin sphēra, from Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”).

### Pronunciation

* IPA: (Central, Balearic) [əsˈfe.ɾə]
* IPA: (Valencia) [esˈfe.ɾa]
* Rhymes: -eɾa

### Noun

esfera f (plural esferes)
* sphere

#### Derived terms

* esferoide
* -sfera

#### Related terms

* esfèric
* hemisferi

### Further reading

* “esfera” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
* “esfera”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
* “esfera” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
* “esfera” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

## Galician
### Etymology

From Late Latin sphēra, from Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”).

### Noun

esfera f (plural esferas)
* sphere

#### Related terms

* esférico

### Further reading

* “esfera”, in Dicionario da Real Academia Galega (in Galician), A Coruña: Royal Galician Academy, 2012–2025

## Portuguese
### Alternative forms

* esphera (obsolete)

### Etymology

Learned borrowing from Late Latin sphēra, from Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”).

### Pronunciation

* (Brazil) IPA: /isˈfɛ.ɾɐ/, /esˈfɛ.ɾɐ/
* (Brazil) IPA: /isˈfɛ.ɾɐ/, /esˈfɛ.ɾɐ/
** (Rio de Janeiro) IPA: /iʃˈfɛ.ɾɐ/, /eʃˈfɛ.ɾɐ/
** (Southern Brazil) IPA: /esˈfɛ.ɾa/
* (Portugal) IPA: /(i)ʃˈfɛ.ɾɐ/
* Rhymes: -ɛɾɐ
* Hyphenation: es‧fe‧ra

### Noun

esfera f (plural esferas)
* (mathematics) sphere (regular three-dimensional object)
* sphere, domain (region in which something or someone is active)

#### Derived terms

* antroposfera
* atmosfera
* biosfera
* esfera armilar
* esfera de influência
* esfericidade
* esférico
* esferoide
* estratosfera
* exosfera
* hidrosfera
* hiperesfera
* ionosfera
* litosfera
* magnetosfera
* mesosfera
* microsfera
* oosfera
* termosfera
* troposfera

#### Related terms

* esferográfica
* esferoidal
* esferométrico
* esferómetro
* esférula

### Further reading

* “esfera”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2025

## Spanish
### Etymology

Borrowed from Late Latin sphēra, from Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”).

### Pronunciation

* IPA: /esˈfeɾa/ [esˈfe.ɾa]
* Rhymes: -eɾa
* Syllabification: es‧fe‧ra

### Noun

esfera f (plural esferas)
* (geometry) sphere
* (figuratively) sphere, area, realm
* clock face

#### Derived terms

* altas esferas
* angloesfera
* biosfera
* esfera armilar
* esfera celeste
* esfera de influencia
* esférico
* hiperesfera

### Further reading

* “esfera”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10