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polycyclic

polycyclic

1 8.2
Having several connected ring shapes in a molecule
  • adjective
  • /ˌpɒliˈsaɪklɪk/
  • Specialized
translation icon : policíclico
  • Scientists are concerned about the environmental impact of polycyclic compounds found in many industrial processes.
  • polycyclic aromatic
  • polycyclic aromatic hydrocarbons
  • polycyclic aromatic compounds

Examples

  • A series of federal and provincial studies revealed the presence of carcinogens, including some species of polycyclic aromatic hydrocarbons (PAHs) (Environment Canada, 1988).

    Academic text (2002)
  • Polycyclic aromatic hydrocarbons (PAHs) are commonly formed during the incomplete combustion of organic materials.

  • So again, here are these polycyclic aromatic hydrocarbons, the paws, the magnetite crystals which were so pure and and so aligned.

  • Concentrations of organic pollutants, such as petroleum hydrocarbons and polycyclic aromatic hydrocarbons, are also declining.

    Academic text (1990)
  • The soil is showing elevated levels of polycyclic aromatic hydrocarbons (PAHs), which have carcinogenic properties.

    Academic text (2009)
  • Nevertheless, eliminating plastics can help and would also reduce emissions of polycyclic aromatic hydrocarbons (PAHs).

    Academic text (1993)
  • Ryberg et al. showed that susceptibility to DNA damage caused by environmental carcinogens such as polycyclic aromatic hydrocarbon-like compounds may be higher among women than among men.

    Academic text (2007)
  • BACKGROUND: Polycyclic aromatic hydrocarbons (PAHs) are known carcinogens and suspected endocrine disruptors.

    Academic text (2014)
  • Charring causes acrylamides and other carcinogens (heterocyclic amines, polycyclic aromatic hydrocarbons) to be produced.

    Blog text (25)
  • Carcinogenic polycyclic aromatic hydrocarbons (PAHs) have been found in cooking fumes (Siegmann & Sattler, 1996, 1999).

    Academic text (2004)

Synonyms

polynuclear
vspolycyclic
  • Specialized
1 8.6

Having more than one central part, for example many cell nuclei

refers specifically to interconnected ring structures in chemistry

How Cyclic

polycyclic
  • Specialized
1 8.2
bicyclic
  • Specialized
9.5
monocyclic
  • Specialized
9.1
acyclic
  • Specialized
8.8

Surface Forms

polycyclic positive

Morphology

polycyclic = cyclic (semi-transparent) = poly + cycle + ic

The chemical sense is built from poly- 'many' and cyclic 'ring-shaped', but the specialized scientific meaning is only partly inferable for general learners.

Etymology

Polycyclic comes from poly 'many' and cycle 'ring' or 'circle'. In chemistry, a polycyclic compound has 'many' rings joined together, so the word helps you picture its ring shape.