filament
noun
[ ˈfɪləm(ə)nt ]
• a slender threadlike object or fibre, especially one found in animal or plant structures.
• "each myosin filament is usually surrounded by 12 actin filaments"
Similar:
fibre,
thread,
strand,
tendril,
string,
wire,
cable,
cord,
fibril,
cilium,
• a conducting wire or thread with a high melting point, forming part of an electric bulb or thermionic valve and heated or made incandescent by an electric current.
Origin:
late 16th century: from French, or from modern Latin filamentum, from late Latin filare ‘to spin’, from Latin filum ‘thread’.