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prion any infectious agent composed of misfolded protein, such as the misfolded protein that causes "mad cow disease."
prior1 being, existing, or occurring earlier in time or sequence; former; previous. [2 definitions]
prior2 a priest in charge of a monastery or other religious house, ranking second to an abbot.
prioress a nun in charge of a convent or other religious house, ranking second to an abbess.
prioritize to put or do in order of priority.
priority precedence, esp. because of authority, right, or urgent need. [3 definitions]
prior to before; until.
priory a religious house composed of either men or women.
prise to move or open with, or as if with, a lever; pry. [3 definitions]
prism a transparent, usu. glass solid with parallel ends of the same size and shape and parallelograms as sides, used to bend light so as to produce the continuous color spectrum of a rainbow. [2 definitions]
prismatic of, like, or relating to a prism. [4 definitions]
prismatic colors the colors that are visible when white light passes through a prism; red, orange, yellow, green, blue, indigo, and violet.
prison a building for confining criminals or those accused of crimes. [3 definitions]
prison camp a place for imprisoning prisoners of war. [2 definitions]
prisoner a person held under close guard or restraint, esp. while on trial for a criminal offense, after conviction of a crime, or as an enemy during wartime. [2 definitions]
prisoner of war a member of the armed forces who is taken captive by an enemy during wartime.
prissy overly proper; prim.
pristine of, pertaining to, or characteristic of the earliest period or original condition. [2 definitions]
privacy the condition of being removed from the view or presence of other people. [3 definitions]
private restricted to the participation or knowledge of specified people. [11 definitions]
private debt within a country or locality, the total amount of money owed to creditors by individuals, businesses, and nongovernmental organizations.