serial port

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Also see: port

Concise Oxford English Dictionary © 2008 Oxford University Press:
serial/ˈsɪəriəl/

▶adjective

• 1 consisting of, forming part of, or taking place in a series.

• 2 repeatedly committing the same offence or following a characteristic behaviour pattern: a serial killer.

• 3 Music relating to or using serialism.

• 4 Computing (of a device) involving the transfer of data as a single sequence of bits.

▶noun

• 1 a published or broadcast story or play appearing in regular instalments.

• 2 (in a library) a periodical.

– derivatives
seriality noun,
serially adverb.

– origin C19: from series + -al, perh. suggested by Fr. sérial.