Magnetotaxis definitions

măg-nē'tō-tăk'sĭs
The movement exhibited by magnetite-containing bacteria that orient themselves along the lines of the earth's magnetic field.
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The movement of an organism, as certain marine bacteria, in response to a magnetic field.
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The movement exhibited by magnetite-containing bacteria that orient themselves along the lines of the earth's magnetic field.
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(biology) The supposed ability to sense a magnetic field and coordinate movement in response, later discovered to be natural magnetism: such creatures orient themselves magnetically even after death.
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Origin of magnetotaxis

Coined in 1975 by R P Blakemore to describe certain motile aquatic bacteria: formed as magnet- +"Ž -o- + taxis.