Definition of cat ice in English:

cat ice

noun

mass noun
  • Thin ice from under which the water has receded.

    • ‘Remember that it's likely to be very cold indeed and it's not uncommon to catch steelhead as snow is falling and there's cat ice on the river fringes.’
    • ‘I was at the water by 8: 00 am and it was freezing cold with pockets of snow littering the banks and half the river was covered with cat ice.’