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filum

American  
[fahy-luhm] / ˈfaɪ ləm /

noun

fila plural
  1. a threadlike structure; filament.


filum British  
/ ˈfaɪləm /

noun

  1. anatomy any threadlike structure or part

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of filum

1855–60; < Latin: a thread, filament, fiber

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The long stems of the sea-plant Chorda filum.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Belcher, Edward, Sir

A small form is often found parasitic on Chorda filum, spreading out horizontally like the hairs of a bottle brush.

From Sea-Weeds, Shells and Fossils by Gray, Peter

The obliquity of the nerves gradually increases, till in the lower part of the canal—from the second lumbar vertebra onward—they run parallel with the filum terminale and together constitute the cauda equina.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander

The word "flax" is derived from filare, to spin, or, filum, a thread; and the botanical title, linum, is got from the Celtic lin also signifying thread.

From Herbal Simples Approved for Modern Uses of Cure by Fernie, William Thomas

Are we to regard these as specimens of a fucus, perhaps the filum, or allied to it, which is known in some places by the appropriate name of sea-laces?

From The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland by Symonds, W. S. (William Samuel)

According to the exhibition catalog, “Aso Oke” was inspired by the handwoven openwork fabric of Nigeria’s Yoruba people, as well as the drooping fila gobi ceremonial cap worn by Yoruba men.

From The Wall Street Journal Dec. 22, 2025

The 1991 Act had already banned the ownership of four breeds - the pit bull terrier, the Japanese tosa, dogo argentino and fila brasileiro.

From BBC Oct. 7, 2025

Four breeds of dogs are currently banned in the United Kingdom: the pitbull terrier, the Japanese tosa, the dogo Argentino and the fila Brasileiro.

From Seattle Times Sep. 15, 2023

Enter the Dangerous Dogs Act 1991, banning the breeding, sale or exchange of pit bulls, Japanese tosas, dogo argentinos and fila brasileiros.

From The Guardian Jul. 27, 2013

Now in Romany, firla, or fila, stands for "face," and has the same meaning—it is exactly the os of the Latins.

From Carmen by Loyd, Lady Mary Sophia (Hely-Hutchinson)

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