U`ni*fi"lar (?), a. [Uni- + L.
filum a thread.] Having only one thread; involving the use of
only one thread, wire, fiber, or the like; as, unifilar
suspension.
Unifilar magnetometer (Physics), an
instrument which consists of a magnetic bar suspended at its center of
gravity by a long thread, constituting a delicate means for accurately
measuring magnetic intensities, also for determining declinations of the
magnetic needle.