Of or pertaining to a tree, or to trees; of nature of trees., Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals.
Thesaurus
Roget's Thesaurus Roget's Thesaurus
arboreal
A telephone book.
ENCYCLOPEDIA
almanac
almanac
Wiki Answers, a dictionary, or a thesaurus. (thess OH russ)
To reference a reference within a reference, you would cite the original source you used, followed by "cited in" and then the secondary source where you found the information. Make sure to acknowledge both sources in your references list to maintain academic integrity.
To find the meaning of a word a dictionary would be used. If you are looking for synonyms and antonyms of a word, you would use a thesaurus. Etiquette is a noun that means the customary code of polite behavior in society or among members of a particular profession or group.
A history textbook.
encyclopedia