Category: H

Decreased cell content of any tissue.  

Having few calories (e.g., a hypocaloric meal).  

Decreased calcium in the urine.  

To a low concentration of calcium in the blood.  

The inner cell layer or endoderm, which develops during gastrulation. The external layer is called ectoderm.  

Decreased atmospheric pressure or density when compared with a standard or reference gas or liquid.  

Inability to sleep without the use of sedative/hypnotic drugs (e.g., benzodiazepines, barbiturates).  

The induction of hypnosis.  

To a condition between sleep and waking, resembling sleep.  

A chart representing the different stages of sleep in a person studied in a sleep laboratory.