noun Rho·pa·lo·si·phum \-ˈsīfəm\

Definition of Rhopalosiphum

  1. :  a widely distributed genus of aphids including several that attack numerous crop plants and some that are vectors of plant viruses — see apple grain aphid, corn leaf aphid

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Origin and Etymology of rhopalosiphum

New Latin, probably from rhopal- + Greek siphōn tube, pipe — more at siphon

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to criticize severely

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