FILAR
filar
(adjective) related to or having filaments (especially across a field of view as in the eyepiece of a telescope); “a filar eyepiece”
Source: WordNet® 3.1
Etymology
Adjective
filar (comparative more filar, superlative most filar)
Of or relating to a thread or line; characterized by threads stretched across the field of view.
Anagrams
• flair, frail
Source: Wiktionary
Fi"lar, a. Etym: [L. filum a thread.]
Definition: Of or pertaining to a thread or line; characterized by threads
stretched across the field of view; as, a filar microscope; a filar
micrometer.
Source: Webster’s Unabridged Dictionary 1913 Edition