- of a thread
- having fine threads or hairs stretched across the field of view, as a micrometer
Origin of filarfrom Classical Latin filum, a thread (see file) + -ar
- Of or relating to a thread.
- Having fine threads across the field of view for measuring small distances, as in the eyepiece of a telescope.
Origin of filarFrom Latin fīlum thread ; see gwhī- in Indo-European roots.
(comparative more filar, superlative most filar)