ACID

I. adjective see: acet- Date: 1626 1. sour, sharp, or biting to the taste, sharp, biting, or sour in manner, disposition, or nature , sharply clear, discerning, or pointed , piercingly intense and often jarring , 2. of, relating to, or being an ~, derived by partial exchange of replaceable hydrogen , containing or involving the use of an ~ (as in manufacture), marked by or resulting from an abnormally high concentration of ~ , relating to or made by a process (as in making steel) in which the furnace is lined with ~ic material and an ~ic slag is used, rich in silica , ~ly adverb ~ness noun II. noun Date: 1696 a sour substance, something incisive, biting, or sarcastic , LSD , ~y adjective