I'll bet that definition and that instrument are both older than ours --
nad more widespread, probably.

At 14:39 19 May 2008, Lew Hartswick wrote:
>Ralph Jones wrote:
>> Variometer American Heritage Dictionary
>>
>> A variable inductor used to measure variations in terrestrial
>> magnetism.
>>
>> rj
>I would say that the "American Heritage Dictionary" has
abslutely
>no electronic knowledge then. :-)
> ...lew...
>