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2011-07-08 14:19:02

Polycyclic aromatic hydrocarbons (PAH) are organic compounds that can be highly contaminant.


Word of the Day
  • an ornament or knob in the shape of a flower
  • In architecture, a floral ornament; specifically, the large conventional flower usually placed in the center of the abacus of a Corinthian capital or classic ceiling-caisson; also, the floreated termination of a Gothic finial.
[ "The word 'fleuron' comes from French."]