series Definition

Fibonacci numbers, sequence
series
noun

1. math.
The infinite series of numbers (0, 1, 1, 2, 3, 5, 8, etc) in which each term is the sum of the preceding two terms.

Etymology: 19c: named after Leonardo Fibonacci of Pisa (c.1170‐c.1230).

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series
noun series (plural)

1. A number of similar, related or identical things arranged or produced in line or in succession, such as a set of similar books issued by the same publishing house.

Thesaurus: succession, order, cycle, sequence, circuit.
2. A TV or radio programme in which the same characters appear, or a similar subject is addressed, in regularly broadcast shows.
3. A set of things that differ progressively.
4. math.
In a sequence of numbers: the sum obtained when each term is added to the previous ones.
5. A taxonomic group.
6. music.
A set of notes in a particular order taken as the basis of a composition rather than a traditional scale. See serialism.
7. physics.
An electric circuit whose components are arranged so that the same current passes through each of them in turn.
8. geol.
A group of rocks, fossils or minerals that can be arranged in a natural sequence on the basis of certain properties, eg composition.

Etymology: 17c: Latin, meaning ‘chain or row'.

Info:

See Usage Note at serial.