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principal |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Principal \Prin"ci*pal\, n. 1. A leader, chief, or head; one who takes the lead; one who acts independently, or who has controlling authority or influence; as the principal of a faction, a school, a firm, etc.; -- distinguished from a subordinate, abettor, auxiliary, or assistant. 2. Hence: (Law) a The chief actor in a crime, or an abettor who is present at it -- as distinguished from an accessory. b A chief obligor, promisor, or debtor, -- as distinguished from a surety. c One who employs another to act for him -- as distinguished from an agent. --Wharton. --Bouvier. --Burrill. 3. A thing of chief or prime importance; something fundamental or especially conspicuous. Specifically: a (Com.) A capital sum of money, placed out at interest, due as a debt or used as a fund; -- so called in distinction from interest or profit. b (Arch. & Engin.) The construction which gives shape and strength to a roof, -- generally a truss of timber or iron, but there are roofs with stone principals. Also loosely, the most important member of a piece of framing. c (Mus.) In English organs the chief open metallic stop, an octave above the open diapason. On the manual it is four feet long, on the pedal eight feet. In Germany this term corresponds to the English open diapason. d (O. Eng. Law) A heirloom; a mortuary. --Cowell. e pl The first two long feathers of a hawk's wing. --Spenser. --J. H. Walsh. f One of turrets or pinnacles of waxwork and tapers with which the posts and center of a funeral hearse were formerly crowned. --Oxf. Gloss. g A principal or essential point or rule a principle. [Obs.] From Webster's Revised Unabridged Dictionary (1913) [web1913]: Principal \Prin"ci*pal\, a. [F., from L. principalis See {Prince}.] 1. Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as the principal officers of a Government; the principal men of a state; the principal productions of a country; the principal arguments in a case. Wisdom is the principal thing --Prov. iv 7. 2. Of or pertaining to a prince; princely. [A Latinism] [Obs.] --Spenser. {Principal axis}. See {Axis of a curve}, under {Axis}. {Principal axes of a quadric} (Geom.), three lines in which the principal planes of the solid intersect two and two as in an ellipsoid. {Principal challenge}. (Law) See under {Challenge}. {Principal plane}. See {Plane of projection} (a), under {Plane}. {Principal of a quadric} (Geom.), three planes each of which is at right angles to the other two and bisects all chords of the quadric perpendicular to the plane, as in an ellipsoid. {Principal point} (Persp.), the projection of the point of sight upon the plane of projection. {Principal ray} (Persp.), the line drawn through the point of sight perpendicular to the perspective plane. {Principal section} (Crystallog.), a plane passing through the optical axis of a crystal. From WordNet r 1.6 [wn]: principal adj : most important element; "the chief aim of living"; "the main doors were of solid glass"; "the principal rivers of America"; "the principal example"; "policemen were primary targets" [syn: {chief(a)}, {main(a)}, {primary(a)}, {principal(a)}] n 1: the original amount of a debt on which interest is calculated 2: the educator who has executive authority for a school; "she sent unruly pupils to see the principal" [syn: {school principal}, {head teacher}, {head}] 3: an actor who plays a principal role [syn: {star}, {lead}] 4: capital as contrasted with the income derived from it [syn: {corpus}, {principal sum}] 5: the major party to a financial transaction; buys and sells for his own account [syn: {dealer}]
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