turn

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turn

1. Music a melodic ornament that makes a turn around a note, beginning with the note above, in a variety of sequences
2. Theatre chiefly Brit a short theatrical act, esp in music hall, cabaret, etc.

turn

[′tərn]
(electricity)
One complete loop of wire.
(mathematics)

TURN

(messaging, protocol)
An SMTP command with which a client asks the server to open an SMTP connection to the client, thus reversing their roles.

Superseded by ETRN.
References in periodicals archive ?
Turn in used batteries only when testing shows they really are unserviceable.
So don't be a hoarder, turn in all that stuff, The supply chain depends on it, sure enough
The T-Sheds offer direct turnover support, depot level repairable issues, turn ins, as well as vehicle, and crane support.