Protection from this shingles vaccine lasts about 5 years, so adults vaccinated before they are 60 years old might not be protected later in life when the risk for shingles and its complications are greatest.
arbor vitae - Latin for tree of life : 1. A 17 th century literary euphemism for the penis . See penis for synonyms. 2. In anatomy, the branching ridges and folds within the cervix of the uterus.
arboreal. 1  of or relating to trees; treelike. 2  Also, arboreous. living in or among trees. 3  Zoology. adapted for living and moving about in trees, as the limbs and skeleton of opossums, squirrels, monkeys, and apes.