Plague is a rare but deadly bacterial infection causing fever, vomiting, seizures, organ failure, and more. Kawasaki disease is an uncommon inflammation of the blood vessels; the most common symptom is fever. Whooping cough, a contagious respiratory infection, causes a runny nose, a mild fever, and a severe cough.
In astronomy, declination (abbreviated dec; symbol Î´) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.eglecting atmospheric refraction, declination is always 0Â° at east and west points of the horizon. At the north point, it is 90Â° â | Ï |, and at the south point, â90Â° + | Ï |.
1 A change in pitch or tone of voice. ( 2 mathematics) A change in curvature from concave to convex or from convex to concave. 3  A turning away from a straight course. ( 4 optometry) diffraction. 5  flection, flexion. ( 6 grammar): conjugation. ( grammar): declension, declination.