any of various toxic gases, especially those used in chemical warfare to kill or incapacitate on inhalation or contact, as phosgene, chlorine, etc.
a gaseous substance, such as chlorine, phosgene, or lewisite, used in warfare to kill or harm
poison gas n.
A gas or vapor used especially in chemical warfare to injure, disable, or kill upon inhalation or contact.
noun 1. (defs 1, 3). noun 1. the US name for hemlock (sense 1)
noun 1. a shrub, Viburnum molle, of the central U.S., having white flowers and bluish-black fruit.
[poi-zuh-ning] /ˈpɔɪ zə nɪŋ/ noun, Pathology. 1. the condition produced by a or by a toxic substance. [poi-zuh n] /ˈpɔɪ zən/ noun 1. a substance with an inherent property that tends to destroy life or impair health. 2. something harmful or pernicious, as to happiness or well-being: the poison of slander. 3. Slang. any variety […]
noun 1. a vine or shrub, Rhus radicans, having trifoliate leaves and whitish berries and causing severe dermatitis when touched by persons sensitive to it. 2. . 3. the rash caused by touching poison ivy. noun 1. any of several North American anacardiaceous shrubs or vines of the genus Rhus (or Toxicodendron), esp R. radicans, […]