Definitions for "irritating"
Keywords:  stimuli, discomfort, burr, flies, bites
causing irritation of living tissue; -- used of physical stimuli.
causing pain or physical discomfort; as, an irritating burr under his stocking.
(used of physical stimuli) serving to stimulate or excite; "an irritative agent"
Keywords:  annoyance, causing
causing annoyance.
Keywords:  fumes, poison, exposed, dot, solid
A irritating material, as defined by DOT, is a liquid or solid substance which upon contact with fire or when exposed to air gives off dangerous or intensely irritating fumes (not including poisonous materials: see Poison, Class A and Poison, Class B)