acicula
— Noun
– English
～ a needlelike part or structure of a plant or animal or crystal; as a spine or bristle or crystal
acicular
— Adjective
– English
～ narrow and long and pointed; as pine leaves
aciculate
— Adjective
– English
～ related to plants or animals or crystals having aciculae or needlelike parts
acid
— Adjective
– English
～ harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
acid
— Adjective
– English
～ having the characteristics of an acid; "an acid reaction"
acid
— Adjective
– English
～ being sour to the taste
acid
— Noun
– English
～ street name for lysergic acid diethylamide
acetylsalicylic acid
— Noun
– English
～ the acetylated derivative of salicylic acid; used as an analgesic anti-inflammatory drug (trade names Bayer, Empirin, and St. Joseph) usually taken in tablet form; used as an antipyretic; slows clotting of the blood by poisoning platelets
acetic acid
— Noun
– English
～ a colorless pungent liquid widely used in manufacturing plastics and pharmaceuticals
acid
— Noun
– English
～ any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
acetoacetic acid
— Noun
– English
～ unstable acid found in abnormal amounts in the blood and urine in some cases of impaired metabolism (as diabetes mellitus or starvation)
acidemia
— Noun
– English
～ a blood disorder characterized by an increased concentration of hydrogen ions in the blood (which falls below 7 on the pH scale)
acidic
— Adjective
– English
～ being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7)
acidic
— Adjective
– English
～ being sour to the taste
acidification
— Noun
– English
～ the process of becoming acid or being converted into an acid