adder

1. (obsolete) Any snake.Examples: "CALIBAN: His spirits hear me, / And yet I needs must curse. But they'll nor pinch / Fright me with urchin-shows, pitch me i'th' mire, / Nor lead me like a firebrand in the dark / Out of my way, unless he bid 'em; but / For every trifle are they set upon me, / Sometimes like apes that mow and chatter at me, / And after bite me; then like hedgehogs, which / Lie tumbling in my barefoot way, and mount / Their pricks at my footfall; sometimes am I / All wound with adders, who with their cloven tongues / Do hiss me into madness—"obsolete

2. A name loosely applied to various snakes more or less resembling a viper.Examples: "Entirely filled with the image of another, her heart, indeed, had the deaf ear of the adder, which heedeth not the voice of the charmer, charm he never so wisely."; "These include the county's [Cumbria's] only venomous snake - the adder - which relies on exposed elements to successfully breed its young."British

3. A name loosely applied to various snakes more or less resembling a viper.British

4. A name loosely applied to various snakes more or less resembling a viper.CanadaUS

5. A name loosely applied to various snakes more or less resembling a viper.CanadaUS