Definify.com
Webster 1913 Edition
Bifilar
Bi-fi′lar
,Adj.
[Pref.
bi-
+ filar
.] Two-threaded; involving the use of two threads;
as,
. bifilar
suspension; a bifilar
balanceBifilar micrometer
(often called a bifilar
an instrument form measuring minute distances or angles by means of two very minute threads (usually spider lines), one of which, at least, is movable; – more commonly called a
filar micrometer
.