filum

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filum

 [fi´lum] (pl. fi´la) (L.)
a threadlike structure or part.
filum termina´le a slender, threadlike prolongation of connective tissue from the conus medullaris to the back of the coccyx.

fi·lum

, pl.

fi·la

(fī'lŭm, -lă), [TA]
A structure of filamentous or threadlike appearance.
[L. thread]

filum

(fī′ləm)
n. pl. fi·la (-lə)
A threadlike anatomical structure; a filament.

fi·lum

, pl. fila (fī'lum, -lă) [TA]
A structure of filamentous or threadlike appearance.
[L. thread]