compositecode

noun
UK /ˈkɒmpəzɪt kəʊd/
US /kəmˈpɑːzɪt koʊd/

A composite code is a special set of secret letters or numbers made by mixing smaller parts together.

The spy wrote the message in a compositecode so no one could read it.


OTHER MEANINGS

2. A code made by joining two or more separate codes into one.

The app uses a compositecode to unlock the door.

3. A set of rules or symbols that combines parts from different systems.

Scientists created a compositecode to label the new plants.

4. A hidden pattern formed by putting smaller patterns together.

The puzzle's answer was a compositecode hidden in the picture.