Best known for: Mapping the Hudson River and the North Atlantic; Biography: Where did Henry Hudson grow up? Historians know very little of Henry Hudson's youth. He was probably born in or near the city of London sometime between 1560 and 1570. It is likely that his family was wealthy and that his grandfather founded a trading company called the Muscovy Company. At some point in his life Henry married a woman named Katherine.
Definition of submandibular. 1  1 : of, relating to, situated in, or performed in the region below the lower jaw. 2  2 : of, relating to, or associated with the salivary glands inside of and near the lower edge of the mandible on each side.
mandibular advancement device. A device composed of wire and plastic that is inserted in the mouth of patients with obstructive sleep apnoea before going to sleep at night. The device moves the mandible forward 4â6 mm and is said to improve sleep quality and reduce sleep apnoea, which is associated with hypertension, CAD and nocturnal angina.