Meaning of adder

ad•der

Pronunciation: (ad'ur), [key]
— n.
  1. the common European viper, Vipera berus.
  2. any of various other venomous or harmless snakes resembling the viper.

add•er

Pronunciation: (ad'ur), [key]
— n.
  1. a person or thing that adds.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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