serially

Serially is an adverb meaning in a series or sequence, with events occurring one after another rather than simultaneously. The term derives from serial, which traces to the Latin series meaning a row or chain, and passed into English via French and early usage.

In common usage, serially describes any action performed in a sequential order. In computing and data handling, it is contrasted with parallel execution: tasks processed serially run one at a time, while parallel processing performs multiple tasks at the same time. In data handling, serial dilution refers to a stepwise reduction in concentration performed in a sequence. In manufacturing, components can be assembled serially along an assembly line. In publishing and media, a work published in installments is said to be released serially, with chapters or episodes appearing over time.

Examples include: "The steps must be performed serially for accuracy." and "The novel was published serially in magazines in the 19th century." The word emphasizes order and progression rather than simultaneity, and is often contrasted with terms such as concurrently or synchronously to highlight differences between sequential versus overlapping processes.