What is the meaning of pure?

adjective

• Free of extraneous elements of any kind.
  • usage: "pure air and water"; "pure gold"; "pure primary colors"; "the violin's pure and lovely song"; "pure tones"; "pure oxygen"
• Without qualification; used informally as (often pejorative) intensifiers.
  • usage: "an arrant fool"; "a complete coward"; "a consummate fool"; "a double-dyed villain"; "gross negligence"; "a perfect idiot"; "pure folly"; "what a sodding mess"; "stark staring mad"; "a thoroughgoing villain"; "utter nonsense"; "the unadulterated truth"
  • synonyms: arrant, complete, consummate, double-dyed, everlasting, gross, perfect, sodding, stark, staring, thoroughgoing, utter, unadulterated
• Of color. ( being chromatically pure; not diluted with white or grey or black)
  • synonyms: saturated
• Free from discordant qualities.
• Concerned with theory and data rather than practice; opposed to applied.
  • usage: "pure science"
• Used of persons or behaviors. ( having no faults; sinless)
  • usage: "I felt pure and sweet as a new baby- Sylvia Plath; "pure as the driven snow"
• In a state of sexual virginity.
  • usage: "pure and vestal modesty"; "a spinster or virgin lady"; "men have decreed that their women must be pure and virginal"
  • synonyms: vestal, virgin, virginal, virtuous