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arithmetic▼(arithmetical)adjective[UK: ə.ˈrɪθ.mə.tɪk] [US: ˌe.ˌrɪθ.ˈme.tɪk]
arithmetic progression [arithmetic progressions]▼(sequence)noun[UK: ə.ˈrɪθ.mə.tɪk prə.ˈɡreʃ.n̩] [US: ˌe.ˌrɪθ.ˈme.tɪk prə.ˈɡreʃ.n̩]
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