(n): a medicine or therapy that cures disease or relieve pain
(n): any obstruction that impedes or is burdensome
(n): any structure that makes progress difficult
(n): an agent or device intended to prevent conception
(n): an instrumentality invented for a particular purpose
(adj): preventing or contributing to the prevention of disease
(adj): vs. unhealthful) -- (conducive to good health of body or mind
(adj): vs. permissive), preventative -- (tending to prevent or hinder
(adj): blocking entrance to and exit from seaports and harbors
(adj): preventing movement
(adj): tending to deter
(adj): preventing realization or attainment of a desire
(adj): taken in advance to protect against possible danger or failure
(adj): prenominal) -- (made impossible
(adj): designed or having the power to deter or prevent an anticipated situation or occurrence
(adj): tending to discourage (especially of prices)