[{"Bold_text": "noun", "List Items": ["Chemistry.a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases.", "a substance with a sour taste.", "something, as a remark or piece of writing, that is sharp, sour, or ill-natured:His criticism was pure acid.", "Slang. LSD1 ."]}, {"Bold_text": "adjective", "List Items": ["Chemistry.belonging or pertaining to acids or the anhydrides of acids.having only a part of the hydrogen of an acid replaced by a metal or its equivalent:an acid phosphate.having a p H value of less than 7.Compare alkaline(def4) alkaline(def4).", "belonging or pertaining to acids or the anhydrides of acids.", "having only a part of the hydrogen of an acid replaced by a metal or its equivalent:an acid phosphate.", "having a p H value of less than 7.Compare alkaline(def4) alkaline(def4).", "sharp or biting to the taste; tasting like vinegar; sour:acid fruits.", "sharp, biting, or ill-natured in mood, manner, etc.:an acid remark; an acid wit.Synonyms: tart , vitriolic , biting , acerbic", "Geology.containing much silica.", "Metallurgy.noting, pertaining to, or made by a process in which the lining of the furnace, or the slag that is present, functions as an acid in high-temperature reactions in taking electrons from oxide ions: usually a siliceous material, as sand or ganister.Compare basic(def3) basic(def3)."]}]