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n; change back and forth. His mind oscillated, undoubtedly; but the extreme points of the oscillation were not very remote. Macaulay. Axis of oscillation, Center of oscillation. See under Axis, and Center.

intersect each other. -- Axis of a balance, that line about which it turns. -- Axis of oscillation, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. -- Axis of polarization, the central line around which the prismatic rings or curves are ar…

neroid. -- Marine barometer, a barometer with tube contracted at bottom to prevent rapid oscillations of the mercury, and suspended in gimbals from an arm or support on shipboard. -- Mountain barometer, a portable mercurial barometer with tripod support, and long scale, for measuring heights. -- Siphon barometer, a…

an instrument for determining the frequency of electic wave oscillations, esp. in connection with wireless telegraphy.

needle or index moves to the extent of its deflection and stops with little or no further oscillation. Deadbeat escapement. See under Escapement.

time; performed in equal times; recurring at regular intervals; isochronal vibrations or oscillations.

A rapid involuntary oscillation of the eyeballs.

Any device for producing electric oscillations; esp., an apparatus for generating electric waves in a system of wireless telegraphy.

apparatus for recording or indicating alternating-current wave forms or other electrical oscillations, usually consisting of a galvanometer with strong field, in which the mass of the moving part is very small and frequency of vibration very high. -- Os`cil*lo*graph"ic (#), a.

ick motion, regularly repeated, as of a medium in the transmission of light, sound, etc.; oscillation; vibration; pulsation; impulse; beat; movement. The measured pulse of racing oars. Tennyson. When the ear receives any simple sound, it is struck by a single pulse of the air, which makes the eardrum and the other memb…

Local oscillations in level observed in the case of some lakes, as Lake Geneva.

terized by a shaking motion, especially an up and down movement, and not merely tremulous oscillation; as, the succussive motion in earthquakes.

t of swinging; a waving, oscillating, or vibratory motion of a hanging or pivoted object; oscillation; as, the swing of a pendulum.

To adjust or devise so as to emit or respond to electric oscillations of a certain wave length; to tune; specif., to put (two or more instruments or systems of wireless telegraphy) in syntony with each other. -- Syn`to*ni*za"tion (#), n.

ave length; agreement or tuning between the time period of an apparatus emitting electric oscillations and that of a receiving apparatus, esp. in wireless telegraphy.

A transformer without iron, for high frequency alternating or oscillating currents; an oscillation transformer.

The quality or state of being vibratile; disposition to vibration or oscillation. Rush.

brating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. As a harper lays his open palm Upon his harp, to deaden its vibrations. Longfellow.

Consisting in, or causing, vibration, or oscillation; vibrating; as, a vibratory motion; a vibratory power.