filamentary

[ fil-uh-men-tuh-ree ]

/ ˌfɪl əˈmɛn tə ri /

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adjective

pertaining to or of the nature of a filament.

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Origin of filamentary

First recorded in 1835–45; filament + -ary

in·ter·fil·a·men·ta·ry, adjective

The base of the sack in several species is furnished with inwardly projecting filamentary appendages.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2)|Charles Darwin
In all states, the filamentary appendages offer a good character.
A Monograph on the Sub-class Cirripedia (Volume 1 of 2)|Charles Darwin
Maxill, deeply notched: caudal appendages, multi-articulated: filamentary appendages, none.
A Monograph on the Sub-class Cirripedia (Volume 1 of 2)|Charles Darwin
Maxill, with the edge square and straight: caudal appendages uniarticulate: filamentary appendages, none.
A Monograph on the Sub-class Cirripedia (Volume 1 of 2)|Charles Darwin

Maxill with two tufts of fine bristles, separated by larger spines: caudal appendages uniarticulate: filamentary appendages none.
A Monograph on the Sub-class Cirripedia (Volume 1 of 2)|Charles Darwin