Bible Dictionaries
Pittacal

Webster's Dictionary

(n.) A dark blue substance obtained from wood tar. It consists of hydrocarbons which when oxidized form the orange-yellow eupittonic compounds, the salts of which are dark blue.

Bibliography Information
Webster, Noah. Entry for 'Pittacal'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/pittacal.html. 1828.