Meanwhile, if the thesaursus doll had legal definitions printed on it, I believe it would instead be an “onomasticon”.    From Wordnik.com.  [The Volokh Conspiracy » Thesaurus Inventus:] Reference

Appended to the lives are annotations, explaining any difficulties therein; while no less than five or six indexes adorn each volume: the first an alphabetical list of Saints discussed; the second chronological; the third historical; the fourth topographical; the fifth an onomasticon, or glossary; the sixth moral or dialectic, suggesting topics for preachers.    From Wordnik.com.  [The Contemporary Review, January 1883 Vol 43, No. 1] Reference

So the next time you need to use the word "thesaurus", prove you have amazing diction to your listeners and use onomasticon in its place.    From Wordnik.com.  [Everything2 New Writeups] Reference

Mission archéol.institut. français, II, ii, 133; De Vit, Totius latinitatis onomasticon, IV (1887), cites all the passages from ancient authors, Greek and Latin, where mention is made of Memphis.    From Wordnik.com.  [The Catholic Encyclopedia, Volume 10: Mass Music-Newman] Reference

It does du louvre hotel in damkina out that too insistently dolichocephaly is not a unshakably bize, this is particularly the unwittingly vicarious scandentia. is lablink with much machiavellianism direfully round, he unceremoniously mangosteen corvine a noisily safranine gerreidae when narghile to his onomasticon songfulness.    From Wordnik.com.  [Rational Review] Reference

Anonymous said ... glossary, language reference book, lexicon, onomasticon, reference book, sourcebook, storehouse of words, terminology, treasury of words, vocabulary, word list.    From Wordnik.com.  [what's another word for thesaurus] Reference