ADDER

n. common European viper; any of a number of venomous or nonvenomous snakes resembling the viper; person or thing that adds; electronic circuit that sums two numbers in a computer (Computers)

Adder may refer to:Adder (snake), a snake, usually a member of the viper family.Adder (electronics), a digital circuit designed to do addition.AA-12 Adder, a Russian air-to-air missile.Adder (Farthing Wood), a character from The Animals of Farthing Wood.Adder, a Commanding Officer in the Nintendo Wars series.USS Adder (SS-3), an early US submarine.Adder (band), A thrash/groove metal band from Southern New Jersey.
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Noun
1. a person who adds numbers
(hypernym) calculator, reckoner, figurer, estimator, computer
2. a machine that adds numbers
(hypernym) calculator, calculating machine
(derivation) total, tot, tot up, sum, sum up, summate, tote up, add, add together, tally, add up
3. small terrestrial viper common in northern Eurasia
(synonym) common viper, Vipera berus
(hypernym) viper
(member-holonym) Vipera, genus Vipera

n. (Animal) adder, viper, common European viper

(n.)
Same as Sea Adder.
  

(n.)
One who, or that which, adds; esp., a machine for adding numbers.
  

(n.)
In America, the term is commonly applied to several harmless snakes, as the milk adder, puffing adder, etc.
  

(n.)
A small venomous serpent of the genus Vipera. The common European adder is the Vipera (Pelias) berus. The puff adders of Africa are species of Clotho.
  

(n.)
A serpent.