Yes, the naming convention does but the source code itself does not lend itself to it greatly with all the parentheses.
open paren sum open paren tick one two three close paren close paren
That's not how you say it.
How do you say it?
You elide the parenthesis. They are as unnecessary when speaking Lisp code aloud as saying "comma", "period", or "question mark" are in everyday conversation.