adj. Of, pertaining to, containing or resembling a filament or filaments
the GNU version of the Collaborative International Dictionary of English
adj. Having the character of, or formed by, a filament.
The Century Dictionary and Cyclopedia
Having the character of or formed by a filament.
Word Usage
"Maps of the distribution of calcium have never been made before, and they reveal that the Local Cavity contains numerous filamentary structures of partially ionized gas that appear to form in a honeycomb-like pattern of small interstellar cells."