تلفظ بین المللی : /mˈɒnəʊɡɹˌaf/ تلفظ : [m'0noUgr,aaf]
English
A written account or description of a single thing, or
class of things; a special treatise on a particular subject of limited
range.
An 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. -- O...
