POLAR a.
two circles, each at a distance from a pole of the earth equal to the obliquity of the ecliptic, or about 23º 28', the northern called the arctic circle, and the southern the antarctic circle. -- Polar clock, a tube, containing a polarizing apparatus, turning on an axis parallel to that of the earth, and indicating t…
PRAY v.
thy Father which seeth in secret shall reward thee openly. Matt. vi. 6. I pray, or (by ellipsis) Pray, I beg; I request; I entreat you; -- used in asking a question, making a request, introducing a petition, etc.; as, Pray, allow me to go. I pray, sir. why am I beaten Shak.
PRECESSION n.
f the equinoxes (Astron.), the slow backward motion of the equinoctial points along the ecliptic, at the rate of 50.2" annually, caused by the action of the sun, moon, and planets, upon the protuberant matter about the earth's equator, in connection with its diurnal rotation; -- so called because either equinox, owing…