noun \ˈa-dər\

Definition of ADDER

:  the common venomous viper (Vipera berus) of Europe; broadly :  any of various snakes of the viper family — compare puff adder
:  any of several North American snakes (as the hognose snakes) that are harmless but are popularly believed to be venomous

Illustration of ADDER

Origin of ADDER

Middle English, alteration (by false division of a naddre) of naddre, from Old English ̄dre; akin to Old High German nātara adder, Latin natrix water snake
First Known Use: 14th century

Rhymes with ADDER


noun \ˈa-dər\

Definition of ADDER

:  one that adds; especially :  a device (as in a computer) that performs addition

First Known Use of ADDER



noun    (Concise Encyclopedia)

Puff adder (Bitis arietans)—Copyright © 1971 Z. Leszczynski/Animals Animals

Any of several venomous snakes of the viper family (Viperidae) and the death adder, a viperlike elapid. Vipers include the common adder, puff adders, and night adders. Adders occur in Europe, Asia, Africa, and Australia. They range in length from 18 in. to 5 ft (45 cm to 1.5 m). The puff adder of Africa and the death adder of Australia and the nearby islands are particularly venomous, with a bite potentially lethal to humans. The name is also used for other snakes (e.g., the hognose snake).


Next Word in the Dictionary: adder's–fern
Previous Word in the Dictionary: addendum circle
All Words Near: adder

Seen & Heard

What made you want to look up adder? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More