prefixcode
nounUK /ˈpriːfɪks kəʊd/
US /ˈpriːfɪks koʊd/
A prefix code is a set of secret codes where no code is the start of another code.
In a prefix code, the code for 'A' can never be the first part of the code for 'B'.
OTHER MEANINGS
2. A coding system in which each symbol maps to a unique bit string that is not a prefix of any other symbol's string.
The engineer designed a prefix code so messages could be read without separators.
3. A method used in computer science to compress data by giving shorter codes to more common symbols.
Huffman coding builds a prefix code from the frequency of each character.
4. A telephone numbering plan where a leading digit or digits identify a region or service.
The country prefix code for the UK is 44.