Definition of unsaturation in US English:

unsaturation

noun

Chemistry
  • See unsaturated

    • ‘The color of a dye is due to its ability to absorb light in the visible region of the spectrum, an ability enhanced by unsaturation (presence of double bonds in the molecule) and resonance.’
    • ‘The degree of unsaturation of fatty acids has been shown to influence several of these steps, at least in mammals.’
    • ‘The lipids in poultry exhibit a higher degree of unsaturation than red meats due to a relatively high content of phospholipids.’
    • ‘The current work shows that lipid asymmetry and unsaturation both result in high critical pressures in monolayers.’
    • ‘Qualitative changes in the levels of fatty acids also occur with cold acclimation, leading to unsaturation of the fatty acids and subsequent protection of plant membranes against freezing stress.’

Pronunciation

unsaturation

/ˌənˌsaCHəˈrāSH(ə)n//ˌənˌsætʃəˈreɪʃ(ə)n/