filiform

About 0.18 uses per million words.

Meaning

1. adjective Shaped like or resembling a thread or filament; filamentous.
2. adjective Having all component parts or segments cylindrical and more or less uniform in size.

   Tiger beetles have filiform antennae.

Similar words

frond antennae bougies palpi papillae filamentous filamentlike filamentose thready filaceous

Often followed by

papillae and or corrosion bougie apparatus needles papilla antennae