fibra

See also: fibră

Catalan

Etymology

Borrowed from Latin fibra.

Pronunciation

• IPA^(key): (Central) [ˈfi.βɾə]
• IPA^(key): (Balearic) [ˈfi.bɾə]
• IPA^(key): (Valencia) [ˈfi.bɾa]

• Audio (Barcelona):

  (file)

Noun

fibra f (plural fibres)

1. fiber, fibre (all senses)
2. (materials science) axis
3. (figurative) energy, vigour

Synonyms

• (filament): filament
• (thread): fil
• (axis): eix
• (vigour): energia, vigor

Derived terms

• desfibrar
• fibra alimentària
• fibra de vidre
• fibra neutra
• fibra òptica
• fibrana
• fibrat
• fibrós

Related terms

• fibril·la

Further reading

• “fibra”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007
• “fibra” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• Alcover, Antoni Maria; Moll, Francesc de Borja (1963), “fibra”, in Diccionari català-valencià-balear (in Catalan)

Italian

Etymology

Derived from Latin fibra.

Pronunciation

• IPA^(key): /ˈfi.bra/
• Rhymes: -ibra
• Hyphenation: fì‧bra

Noun

fibra f (plural fibre)

1. fiber, fibre (all senses)

Related terms

• fibra a casa
• fibra di vetro
• fibra naturale
• fibra ottica
• fibra sintetica
• fibrato
• fibrilla
• fibrina
• fibro-
• fibroadenoma
• fibroblasto
• fibrocellula
• fibrocemento
• fibrocita
• fibroide
• fibroina
• fibroma
• fibrosarcoma
• fibroscopio
• fibrosi
• fibroso
• fluorofibra
• microfibra

Anagrams

• fabri

Latin

Etymology

Etymology tree

Proto-Indo-European *bʰeyd-der.

Latin *fidber / *findber?

Latin fibra

Possibly from *fidber or *findber, from Proto-Indo-European *bʰeyd- (“to split”), whence findō.

Pronunciation

• (Classical Latin) IPA^(key): [ˈfɪ.bra]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈfiː.bra]

Noun

fibra f (genitive fibrae); first declension

1. fibre, filament
2. (transferred sense, poetic) entrails
   • 8 CE, Ovidius, Metamorphoses 15.794–795:

     victima nūlla litat, magnōsque īnstāre tumultūs
     fibra monet […]

     No sacrificial victim gives favorable omens, and the entrails warn
     that great conflicts are looming […]

Declension

First-declension noun.

	singular	plural
nominative	fibra	fibrae
genitive	fibrae	fibrārum
dative	fibrae	fibrīs
accusative	fibram	fibrās
ablative	fibrā	fibrīs
vocative	fibra	fibrae

Descendants

• Catalan: fibra
• English: fibre, fiber
• French: fibre
• Galician: febra, freba, fibra
• Italian: fibra
• Norwegian Bokmål: fiber
• Norwegian Nynorsk: fiber
• Portuguese: febra, fevra, fêvera, fibra
• Romanian: fibră
• Russian: фибра (fibra)
• Sicilian: fibbra
• Spanish: hebra, fibra

References

• “fibra”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “fibra”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• “fibra”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “fiber”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.

Portuguese

Etymology

Borrowed from Latin fibra. Compare the inherited doublet fêvera.

Pronunciation

 

• (Brazil) IPA^(key): /ˈfi.bɾɐ/

• (Brazil) IPA^(key): /ˈfi.bɾɐ/
  • (Southern Brazil) IPA^(key): /ˈfi.bɾa/

• (Portugal) IPA^(key): /ˈfi.bɾɐ/ [ˈfi.βɾɐ]

Noun

fibra f (plural fibras)

1. fiber / fibre (single elongated piece of material)

Related terms

• fibroso

Further reading

• “fibra”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “fibra”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Romanian

Pronunciation

• IPA^(key): [ˈfibra]

Noun

fibra f

1. definite nominative/accusative singular of fibră

Spanish

Etymology

Borrowed from Latin fibra. Compare the inherited doublet hebra.

Pronunciation

• IPA^(key): /ˈfibɾa/ [ˈfi.β̞ɾa]
• Rhymes: -ibɾa
• Syllabification: fi‧bra

Noun

fibra f (plural fibras)

1. fiber / fibre (a single elongated piece of material)
2. fiber / fibre (a material (especially synthetic) in the form of fibers)
3. fiber / fibre; dietary fiber / dietary fibre
4. (informal) fiberglass / fibreglass

Derived terms

• fibra de vidrio
• fibra muscular
• fibra nerviosa
• fibra óptica
• fibrina
• fibroma
• fibromialgia
• fibrón

Related terms

• fibrilar
• fibroso
• hebra

Further reading

• “fibra”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025