\dˈa͡ɪz], \dˈaɪz], \d_ˈaɪ_z]\
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Hemera, A day, (F.) Jour. The day is, properly, the period during which the solar light illumines our horizon: but commonly, also, we designate by the word day the period of 24 hours or Nycthemeron, which is frequently divided into four parts -morning, midday, evening, and midnight. In antiquity, great importance was attached to the observation of days in disease. The medical day is usually reckoned at 24 hours, -universally, in estimating the duration of a disease. In parts of the United States, it comprises only the time when the sun is above the horizon, as regards the administration of medicine, so that if a medicine be ordered to be taken four times day, it is understood to mean during the 12 hours of day.
By Robley Dunglison
Word of the day
- a threadlike extension of nerve cell Slender processes of neurons, especially the prolonged axons that conduct nerve impulses. One units trunk; it is axis process a neuron and medullated, i. e. white substance Schwann (myelin), medullated; either the medullated non-axis-cylinder or may not be surrounded by primitive sheath neurilemma, so that there are four forms of nerve-fibers.