ARGUMENTATION n. 2 definitions
e, from facts or principles known, admitted, or proved to be true. Which manner of argumentation, how false and naught it is, . . . every man that hath with perceiveth. Tyndale.
ASTATIC a.
xed or definite position or direction: thus, a suspended magnetic needle, when rendered astatic, loses its polarity, or tendency to point in a given direction. Astatic pair (Magnetism), a pair of magnetic needles so mounted as to be nearly or quite astatic, as in some galvanometers.