[plt-scheme] Good general term for context elements?

An evaluation context is made up of a bunch of ... frames?  elements?  
thingies?  I want to talk about the differences between a CEK-like  
model and an SECD-like model, where the individual context frames are  
grouped into activation records, and I'm wondering if there's a better  
term than "context frames".

Anyone?

John Clements

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 2484 bytes
Desc: not available
URL: <http://lists.racket-lang.org/users/archive/attachments/20080917/2c00988c/attachment.p7s>