General Definition: 1. The action of vigorously scraping along the top of a flat, thin object such as a fish, in order to remove the scales. As a Verb or Adjective: 1. To remove the scales from a whole fish, or piece of fish, using a knife or specialised implement. English = descale. Note: 1. There appears to be no commonly used Auslan sign for DESCALE (but some signers represent this visually using these depicting signs, once they have established the topic). If you know a sign for DESCALE used by you or other Auslan users (deaf people or interpreters) please go to "Report missing sign" and supply details. Thank you.