'Original sin' definitions:

Definition of 'original sin'

From: WordNet
noun
A sin said to be inherited by all descendants of Adam; "Adam and Eve committed the original sin when they ate the forbidden fruit in the Garden of Eden" [ant: actual sin]

Definition of 'Original sin'

From: GCIDE
  • Sin \Sin\, n. [OE. sinne, AS. synn, syn; akin to D. zonde, OS. sundia, OHG. sunta, G. s["u]nde, Icel., Dan. & Sw. synd, L. sons, sontis, guilty, perhaps originally from the p. pr. of the verb signifying, to be, and meaning, the one who it is. Cf. Authentic, Sooth.]
  • 1. Transgression of the law of God; disobedience of the divine command; any violation of God's will, either in purpose or conduct; moral deficiency in the character; iniquity; as, sins of omission and sins of commission. [1913 Webster]
  • Whosoever committeth sin is the servant of sin. --John viii. 34. [1913 Webster]
  • Sin is the transgression of the law. --1 John iii. 4. [1913 Webster]
  • I think 't no sin. To cozen him that would unjustly win. --Shak. [1913 Webster]
  • Enthralled By sin to foul, exorbitant desires. --Milton. [1913 Webster]
  • 2. An offense, in general; a violation of propriety; a misdemeanor; as, a sin against good manners. [1913 Webster]
  • I grant that poetry's a crying sin. --Pope. [1913 Webster]
  • 3. A sin offering; a sacrifice for sin. [1913 Webster]
  • He hath made him to be sin for us, who knew no sin. --2 Cor. v. 21. [1913 Webster]
  • 4. An embodiment of sin; a very wicked person. [R.] [1913 Webster]
  • Thy ambition, Thou scarlet sin, robbed this bewailing land Of noble Buckingham. --Shak. [1913 Webster]
  • Note: Sin is used in the formation of some compound words of obvious signification; as, sin-born; sin-bred, sin-oppressed, sin-polluted, and the like. [1913 Webster]
  • Actual sin, Canonical sins, Original sin, Venial sin. See under Actual, Canonical, etc.
  • Deadly sins, or Mortal sins (R. C. Ch.), willful and deliberate transgressions, which take away divine grace; -- in distinction from vental sins. The seven deadly sins are pride, covetousness, lust, wrath, gluttony, envy, and sloth.
  • Sin eater, a man who (according to a former practice in England) for a small gratuity ate a piece of bread laid on the chest of a dead person, whereby he was supposed to have taken the sins of the dead person upon himself.
  • Sin offering, a sacrifice for sin; something offered as an expiation for sin. [1913 Webster]
  • Syn: Iniquity; wickedness; wrong. See Crime. [1913 Webster]