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Pronunciation varies by accent · noun
A mechanical device that uses a combination of pendulums to generate an image based on Lissajous curves..
Use harmonograph when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Harmonograph means A mechanical device that uses a combination of pendulums to generate an image based on Lissajous curves..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use harmonograph where its definition matches the intended context.
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