CRITICAL a.
ces; hence, of doubtful issue; attended with risk; dangerous; as, the critical stage of a fever; a critical situation. Our circumstances are indeed critical. Burke. The small moment, the exact point, the critical minute, on which every good work so much depends. South. Critical angle (Optics), that angle of incidence o…
DANDY n.
A dandy roller. See below. Dandy brush, a yard whalebone brush. -- Dandy fever. See Dengue. -- Dandy line, a kind of fishing line to which are attached several crosspieces of whalebone which carry a hook at each end. -- Dandy roller, a roller sieve used in machines for making paper, to press out water from the pulp,…
DENGUE n.
A specific epidemic disease attended with high fever, cutaneous eruption, and severe pains in the head and limbs, resembling those of rheumatism; -- called also breakbone fever. It occurs in India, Egypt, the West Indies, etc., is of short duration, and rarely fatal.
DUMB a.
e Foe. Deaf and dumb. See Deaf-mute. -- Dumb ague, or Dumb chill, a form of intermittent fever which has no well-defined "chill." [U.S.] -- Dumb animal, any animal except man; -- usually restricted to a domestic quadruped; -- so called in contradistinction to man, who is a "speaking animal." -- Dumb cake, a cake made…
ERRATIC a.
Irregular; changeable. "Erratic fever." Harvey. Erratic blocks, gravel, etc. (Geol.), masses of stone which have been transported from their original resting places by the agency of water, ice, or other causes. -- Erratic phenomena, the phenomena which relate to transported materials on the earth's surface.…
ESSENTIAL a.
e to distinguish one genus, species, etc., from another. -- Essential disease, Essential fever (Med.), one that is not dependent on another. -- Essential oils (Chem.), a class of volatile oils, extracted from plants, fruits, or flowers, having each its characteristic odor, and hot burning taste. They are used in esse…