hypothalamus
- n a basal part of the diencephalon governing autonomic nervous system
hypothesis
- n a proposal intended to explain certain facts or observations
- n a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
a scientific hypothesis that survives experimental testing becomes a scientific theory - n a message expressing an opinion based on incomplete evidence
hypothetical creature
- n a creature that has not been observed but is hypothesized to exist
hypothetical imperative
- n a principle stating the action required to attain a desired goal
hypothrombinemia
- n a low level of prothrombin (factor II) in the circulating blood; results in long clotting time and poor clot formation and sometimes excessive bleeding; can result from vitamin K deficiency
hypothyroidism
- n an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones
hypotonicity
- n (of a solution) the extent to which a solution has a lower osmotic pressure than some other
- n (of muscular tissue) the state of being hypotonic
hypovitaminosis
- n any of several diseases caused by deficiency of one or more vitamins
hypovolaemia
- n a blood disorder consisting of a decrease in the volume of circulating blood
hypovolemia
- n a blood disorder consisting of a decrease in the volume of circulating blood
hypoxia
- n oxygen deficiency causing a very strong drive to correct the deficiency
hypoxic hypoxia
- n hypoxia resulting from defective oxygenation of the blood in the lungs
hypoxidaceae
- n in some classification systems included in the Amaryllidaceae