A form of barometer so constructed as to inscribe of itself upon paper a record of the variations of atmospheric pressure.
the conversion of a compound into an isomer of itself
no body can move of itself
per se, by itself, of itself
An instrument by means of which a sound can be made to produce a visible trace or record of itself
in and of itself
[网络] 本身；本身有其价值；可以独自存在的实体
