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[fil-uh-men-tuh s] /ˌfɪl əˈmɛn təs/
composed of or containing filaments.
pertaining to or resembling a filament.
bearing filaments.
Origin of filamentous
1665-75; filament + -ous
Related forms
interfilamentous, adjective
nonfilamentous, adjective
unfilamentous, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for filamentous
Historical Examples
  • Pod 1° long, with linear stalk, containing many seeds separated by filamentous isthmuses.

  • The filamentous detail of the inner corona, and the faintest outlying extensions or streamers, the eye must still reveal directly.

    Astronomy David Todd
  • In a similar way the petals and labellum of Odontoglossum Uro-Skinneri have been found reduced to filamentous processes.

    Vegetable Teratology Maxwell T. Masters
  • Siliceous skeletons of chara and filamentous alg were also found upon a close examination in some of these molds.

  • The first use made of the filamentous matter, was to substitute it for the wadding used in quilted counterpanes.

  • The external gills are long and filamentous, and the yolk sac is large.

  • In structure they are expanded or filamentous, nearly always rose-coloured or purple in colour.

  • Some of the delicate, filamentous green alg are reproduced by another process termed conjugation.

    The Sea Shore William S. Furneaux
  • The external gills are moderately long, slender, and filamentous; the yolk sac is still moderately large.

  • There the filamentous vibrio dies, and disappears under the form of fine amorphous granulations deprived of virulence.

    Louis Pasteur Ren Vallery-Radot

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