What Alternative Term Can Replace Non-Proper Length in Relativistic Terminology?

[bernhard.rothenstein]

if for non-proper time interval we can use coordinate time interval what could we use instead of non-proper length.
thanks for the help?

 

[Hootenanny]

"Contracted Length" is often used in SR for a length measured by an observer in relative motion to whatever is being measured.

 

[DocN]

Hawkins uses "space-like" dimensions to describe early time dimenstions--at the initial big bang stage.
Doc