MUCUS n.
A viscid fluid secreted by mucous membranes, which it serves to moisten and protect. It covers the lining membranes of all the cavities which open externally, such as those of the mouth, nose, lungs, intestinal canal, urinary passages, etc.
PANCREATIC a.
secretion, digestion, ferments. Pancreatic juice (Physiol.), a colorless alkaline fluid secreted intermittently by the pancreatic gland. It is one of the most important of the digestive fluids, containing at least three distinct ferments, trypsin, steapsin and an amylolytic ferment, by which it acts upon all three clas…
POISON n.
See Illust. under Fang. -- Poison gland (Biol.), a gland, in animals or plants, which secretes an acrid or venomous matter, that is conveyed along an organ capable of inflicting a wound. -- Poison hemlock (Bot.), a poisonous umbelliferous plant (Conium maculatum). See Hemlock. -- Poison ivy (Bot.), a poisonous clim…