Steep-down
Pronunciation : Steep"-down`
Part of Speech : a.
Definition : Defn: Deep and precipitous, having steep descent. [R.] Wash me in steep-down gulfs of liquid fire. Shak.
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