IEC

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International Electrotechnical Commission. From the website:

The IEC is the world's leading organization that prepares and publishes International Standards for all electrical, electronic and related technologies — collectively known as "electrotechnology."

Usually refers to an IEC connector, C13 (female cord connector):

IEC connector - Wikipedia, the free encyclopedia

and C14 (male panel-mount) type.

IEC connector - Wikipedia, the free encyclopedia

In the US, a cable with a male 5-15 plug and a C13 connector is usually referred to as a UPC; (more often than not, called a "UPC cord," much like an "ATM machine" and "PIN number.")