Concho-spiral
Pronunciation : Con`cho-spi"ral
Part of Speech : n.
Definition : Defn: A kind of spiral curve found in certain univalve shells. Agassiz.
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