adj. Having the form of threads or filaments; filamented.
the GNU version of the Collaborative International Dictionary of English
adj. Like a thread; consisting of threads or filaments.
The Century Dictionary and Cyclopedia
Like a thread; composed of threads or filaments.
Capable of being drawn out into filaments, like mucus; hence, in medicine, containing a stringy substance: as, filamentous urine.
Having filaments; fringed or fringe-like; fimbriate.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. thin in diameter; resembling a thread
Word Usage
"However, given that H1 is not essential in simple metazoans, such as filamentous fungi and also in specialized protozoa, we have good reason to suspect it might likewise be nonessential for less specialized protozoa."