PARALLEL SULCUS

\pˈaɹəlˌɛl sˈʌlkəs], \pˈaɹəlˌɛl sˈʌlkəs], \p_ˈa_ɹ_ə_l_ˌɛ_l s_ˈʌ_l_k_ə_s]\
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2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.