[Proj] Terminology: what should I call 60 nautical miles?

[Mikael Rittri]

Hello,
I would like a term for the length unit that is 60 nautical miles.  

This length unit would approximate one degree of 
arc distance, in the same way as one nautical mile 
approximates one minute of arc distance.

I have thought of the phrase "degree of arc distance" 
(which I think agrees, more or less, with how Snyder uses this phrase)
but some of my colleagues dislike it. 

I have also thought of the phrase "exēntanautical mile",
from Greek "exēnta" = 60, but... 

--
Mikael Rittri
Carmenta AB
SWEDEN
www.carmenta.com