I. ad·der ˈadə(r) noun
( -s )
Etymology: Middle English addre, alteration (resulting from incorrect division of a naddre ) of naddre, from Old English nǣdre adder, snake; akin to Old High German nātara adder, Old Norse nathr, Gothic nadrs, Latin natrix water snake, and probably to Latin nēre to spin — more at needle
1.
a. : the common viper ( Vipera berus ) of Europe
b. : any other snake (as a puff adder) of the family Viperidae
2. : krait
3. : any of several harmless No. American snakes: as
a. : hognose snake
b. : milk snake
[s]adder.jpg[/s] [
adder 1
]
II. add·er ˈadə(r), ˈaad- noun
( -s )
Etymology: add (I) + -er
: one that adds ; especially : a device (as in a computer) that performs addition