Q:

Does a 1-byte UTF-8 "sequence" have a special name?

Per Wikipedia, in UTF-8, the first byte in a multi-byte sequence is called a leading byte, and the subsequent bytes in the sequence are called continuation byte.
I understand these might not be the "official" names (in fact, the UTF-8 RFC does not provide any names for the different octet types), but according to Wikipedia and based on my research so far, these seem to be the names in common use.
Is there a special name in common use for a byte that is neither a leading byte nor a continuation byte (i.e., for code points < 128)?
I'm documenting some fairly complex code that is designed to work with UTF-8-encoded strings, and I'd like to make sure to use standard terminology to avoid confusion.

A:

Everywhere I would expect to see a definition, I cannot find a special term for this (beyond the already mentioned ASCII). The only thing I can add is that a one-byte "sequence" is a legitimate sequence and that the one byte is not excluded from being called a leading byte.
References from the Unicode standard:

§3.9 (PDF, pg. 119)

A code unit sequence may consist of a single code unit.

§2.5 (PDF, pg. 37)

A range of 8-bit code unit values is reserved for the first, or leading, element of a UTF-8 code unit sequences, and a completely disjunct range of 8-bit code unit values is reserved for the subsequent, or trailing, elements of such sequences;

