concatenated

Concatenated is the past participle of concatenate, meaning to link or join things in a series. It describes items that have been connected end to end to form a longer sequence or composite object.

In computing and programming, concatenation is the operation of joining strings or byte sequences to produce a new, longer string. The result is a concatenated string. Many languages provide an operator or function for this: for example, + in JavaScript and Python, the CONCAT function or || operator in SQL, and the . operator in PHP. Because strings are often immutable, repeated concatenation can be inefficient; alternatives such as string builders, streams, or join methods are recommended for large or numerous joins.

Beyond strings, concatenation appears in linguistics as concatenative morphology, where units are strung together to form larger forms. In bioinformatics, nucleotide or amino acid sequences may be concatenated to assemble longer sequences for analysis or alignment. In data handling, multiple fields may be concatenated to form a single display string or a unified data field.