First Known Use: circa 1859
Dictionary
filar
adjective fi·lar \ˈfī-lər\
Definition of FILAR
: of or relating to a thread or line; especially : having threads across the field of view <a filar eyepiece>
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Origin of FILAR
Latin filum thread
Medical Dictionary
filar
adjective fi·lar \ˈfī-lər\
Medical Definition of FILAR
: of or relating to a thread or line; especially : having threads across the field of view <a filar eyepiece>
Seen & Heard
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