YES!
Both opaque and exegesis are real words:
o·paque adj.
1. Impenetrable by light; neither transparent nor translucent.
2. Not reflecting light; having no luster: an opaque finish.
2. Impenetrable by a form of radiant energy other than visible light: a chemical solution opaque to x-rays.
1. So obscure as to be unintelligible: "opaque, elusive, minimal meanings" (John Simon).
2. Obtuse of mind; dense. See Synonyms at dark.
ex·e·ge·sis n. Critical explanation or analysis, especially of a text.
n : an explanation or critical interpretation (especially of the Bible).
However
google shows that this is the first time in history
that those two words
have been used together!
Congratulations Setanta!

Another A2K First!
. . . God I love this place.
Exegesis. ExeGESis. EXEgesis. ExegeSIS. That's cool.
It was even "Word of the Day" on
July 17, 2001, that's how good it is.