FR - What does FR mean?

Definition of FR:

FR stands for Fluorescent Red. This code is assigned to Label Planet's fluorescent labels to indicate that they are made of fluorescent red paper. These labels have a permanent adhesive and are suitable for use with laser printers only.

Here is the Harvard-style citation to use if you would like to reference this definition of the term FR:
Label Planet (2025) What is FR definition | Labelplanet. Available at: https://www.labelplanet.co.uk/glossary/fr/ (Accessed: January 1, 2025).