Home › Words › A › adderadder/ˈædɚ/adder means A person who has attention deficit disorder.adder is pronounced /ˈædɚ/.EtymologyFrom ADD + -er.nounA person who has attention deficit disorder.e.g.“Many ADDers become targets for bullies and are routinely harassed at school.” — 1996, David Sosin, Attention Deficit Disorder, page 54:Any snake.A name loosely applied to various snakes more or less resembling a viper.; A small venomous serpent of the genus Viperae.g.“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.” — 1834, L[etitia] E[lizabeth] L[andon], chapter XXX, in Francesca Carrara. […], volume III, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, page 245:A name loosely applied to various snakes more or less resembling a viper.; A small venomous serpent of the genus Vipera; A common European adder (Vipera berus).A name loosely applied to various snakes more or less resembling a viper.; A puff adder, of Africa (genus Bitis).A name loosely applied to various snakes more or less resembling a viper.; Any of several small nonvenomous snakes resembling adders; A milk snake (Lampropeltis triangulum).A name loosely applied to various snakes more or less resembling a viper.; Any of several small nonvenomous snakes resembling adders; A hog-nosed snake, of genus Heterodon of harmless colubrid snakes found in North AmericaA name loosely applied to various snakes more or less resembling a viper.; Certain venomous snakes resembling other adders; Death adders (Acanthophis spp.), elapid snakes found in Southeast Asia and AustraliaA name loosely applied to various snakes more or less resembling a viper.; Certain venomous snakes resembling other adders; A northern copperhead (Agkistrodon contortrix mokasen), a venomous viper found in the eastern United StatesA sea stickleback or adder fish (Spinachia spinachia).Someone who or something which performs arithmetic addition; a machine for adding numbers.An electronic device that adds voltages, currents or frequencies.Something which adds or increases.e.g.“They sought out cost adders with an eye toward eliminating them.”Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.adhder 82% match — A person with ADHD (attention deficit hyperactivity disorder). vs adder →adhd 67% match — Of or relating to attention deficit hyperactivity disorder. vs adder →audhder 62% match — Someone with both ADHD and autism. vs adder →addie 62% match — Adderall, especially when used as a cognitive enhancer or recreational drug. vs adder →adderalled 60% match — Under the influence of the drug Adderall. vs adder →addlebrain 59% match — An addlebrained person. vs adder →audhd 57% match — The combination of autism and ADHD (attention deficit hyperactivity disorder). vs adder →addy 56% match — Address (especially e-mail address). vs adder →