An optical or electronic instrument used to observe, study, or visualize the structure and properties of cyclones.
From cyclone + -scope (an instrument for viewing or observing, from Greek skopein meaning to look). This term represents 19th-century attempts to create observational instruments for weather phenomena.
If cyclonoscopes ever truly existed as optical devices, they failed because cyclones are too large to observe directly—we had to wait for satellites in the 1960s to actually 'see' them.
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