cornu ammonis

English

Alternative forms

cornu Ammonis

Etymology

Latin cornū Ammōnis (“Ammon's horn”). See ammonite.

Noun

cornu ammonis (plural cornua ammonis)

(paleontology, obsolete) A fossil shell, curved like a ram's horn; an ammonite.
(anatomy, obsolete) The hippocampus of the brain.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “cornu ammonis”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)