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to phrases
proper motion
['prɔpə'məuʃ(ə)n]
gen.
Eigenbewegung
f
English thesaurus
Proper Motion
['prɔpə'məuʃ(ə)n]
sport., abbr.
PM
proper motion:
10 phrases
in 3 subjects
Astronomy
8
Biology
1
Optics
branch of physics
1
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