~ 1 [ 'sʌɪdˌwʌɪndə ]
■ noun a nocturnal burrowing rattlesnake that moves sideways over sand by throwing its body into S-shaped curves. [ Crotalus cerastes .]
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~ 2 [ 'sʌɪdˌwɪndə ]
■ noun N. Amer. a heavy blow with the fist delivered from or on the side.