plus sign

plural of addition sign

Gaboon viper

A surname.

plural of Addair

plural of value-added service

(business, marketing) A service used to promote the primary business of an enterprise that is provided at little or no cost.

present participle of addend

The non-venomous European ringed snake or water snake, Natrix natrix. / The venomous American cottonmouth, Agkistrodon piscivorus. / The non-venomous American northern water snake,Nerodia sipedon

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