Magnetic needle synonyms

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A device for finding out the direction from which radio waves or signals are coming, as a loop antenna that can be rotated freely on a vertical axis
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A chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. Litmus, for example, is an indicator that becomes red in the presence of acids and blue in the presence of bases.
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A magnetized pointer (usually marked on the North end) within a compass, free to align itself with the Earth's magnetic field.
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Find another word for magnetic needle. In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for magnetic needle, like: direction finder, needle, indicator and compass-needle.