Basaltiform
Pronunciation : Ba*salt"i*form
Part of Speech : a.
Etymology : [Basalt + -form.]
Definition : Defn: In the form of basalt; columnar.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder