battery-acid bat·te·rya·cid uncommon noun 1. street name for lysergic acid diethylamide Synonymsacidback breakerdosedotElvisloony toonsLucy in the sky with diamondspanesupermanwindow paneZen 2. dilute sulfuric acid used in storage batteries Synonymsbattery acidelectrolyte acid Related words Broader terms lysergic acid diethylamidevitriol WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.