hy·po·ten·sion 
(hī′pə-tĕnshən)
(hī′pə-tĕnshən)n.
1. Abnormally low arterial blood pressure.
2. Reduced pressure or tension of a body fluid, as of the intraocular or cerebrospinal fluids.
- organochlorine
- organ of Corti
- organogenesis
- organogenetic
- organogenetically
- organographic
- organographically
- organography
- organoleptic
- organoleptically
- organologic
- organological
- organology
- organomercurial
- organometallic
- organon
- organophosphate
- organophosphorous
- organophosphorus
- organotherapeutic
- organotherapy
- organotropic
- organotropism
- organotropy
- organ-pipe cactus