Intrinsic value is more or less the automatic given value to one of the qualities a domain domain has, regardless of what it is used for, based simply on the fact that it IS:
It IS 4 letters, or it IS 3 chars, it IS a 5 letter dictionary word etc. It carries a certain intrinsic value based strictly on that, regardless of what those letters happen to be.
Intrinsic value is not an appraisal, but something that would be factored into an appraisal. This domain has some intrinsic value because it is a pronouncable 4 letter name. It may have value on top of that too (in this case my opinion is that it doesn't), and in appraising the domain you would take that intrinsic value into consideration.
q3j.com has no value to anybody, except the intrinsic value it has to a domainer simply due to the fact that it is a 3 char .com. In real life, it's got nothing, but you'll still find a buyer.
Although intrinsic value is not technically a complete appraisal of the domain name, it still has a place here, because it is an evaluation of the worth of the domain. If that's what the appraisers want to contribute to the thread, i'm sure the OP will welcome the input.
Shorter version: Intrinsic is the god-given value a name has that cannot be taken away, because it corresponds to letter structure, size, meaning or something other permenant aspect of the domain.